diff --git a/.eslintrc.js b/.eslintrc.js
index 7c0d2209..e1d8effd 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -5,9 +5,9 @@ module.exports = {
   },
   extends: [
     '@vue/airbnb',
-    'plugin:vue/recommended', 
-    // "plugin:@typescript-eslint/recommended",
-    "plugin:import/typescript",
+    'plugin:vue/recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:import/typescript',
     // "plugin:prettier/recommended",
     // "prettier/@typescript-eslint"
   ],
@@ -27,12 +27,12 @@ module.exports = {
     'vue/multi-word-component-names': 0,
     'vue/no-mutating-props': 0,
     'vue/v-slot-style': 0,
-    'camelcase': 0,
+    camelcase: 0,
     'vuejs-accessibility/click-events-have-key-events': 'off',
     'vuejs-accessibility/mouse-events-have-key-events': 'off',
     'vuejs-accessibility/anchor-has-content': 'off',
     'no-unsafe-optional-chaining': 1,
     'vuejs-accessibility/label-has-for': 1,
-    'import/extensions': 'off'
+    'import/extensions': 'off',
   },
 }
diff --git a/package.json b/package.json
index 73a02f32..a533fe74 100644
--- a/package.json
+++ b/package.json
@@ -27,9 +27,12 @@
     "@ledgerhq/hw-app-eth": "^6.28.2",
     "@ledgerhq/hw-transport-web-ble": "^6.27.1",
     "@ledgerhq/hw-transport-webusb": "^6.27.1",
+    "@ledgerhq/hw-transport": "6.27.2",
     "@metamask/eth-sig-util": "^4.0.1",
     "@tharsis/address-converter": "^0.1.8",
     "@tharsis/transactions": "^0.2.5",
+    "@tharsis/eip712": "0.2.4",
+    "@tharsis/proto": "0.1.20",
     "@vue/composition-api": "^1.4.9",
     "@vueuse/core": "4.0.0",
     "animate.css": "4.1.1",
@@ -105,6 +108,7 @@
     "@vue/cli-service": "~5.0.4",
     "@vue/eslint-config-airbnb": "^6.0.0",
     "@vue/eslint-config-standard": "6.1.0",
+    "@vue/eslint-config-typescript": "11.0.0",
     "@vuepress/plugin-medium-zoom": "^1.7.1",
     "compression-webpack-plugin": "6.1.1",
     "eslint": "^8.15.0",
diff --git a/vue.config.js b/vue.config.js
index 27a3c7e1..1ee5584c 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
 const path = require('path')
 const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer')
 // const CompressionWebpackPlugin = require('compression-webpack-plugin')
diff --git a/yarn.lock b/yarn.lock
index c212e569..75f3cda8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2722,6 +2722,21 @@
   dependencies:
     "@types/node" "*"
 
+"@typescript-eslint/eslint-plugin@^5.0.0":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.36.1.tgz#471f64dc53600025e470dad2ca4a9f2864139019"
+  integrity sha512-iC40UK8q1tMepSDwiLbTbMXKDxzNy+4TfPWgIL661Ym0sD42vRcQU93IsZIrmi+x292DBr60UI/gSwfdVYexCA==
+  dependencies:
+    "@typescript-eslint/scope-manager" "5.36.1"
+    "@typescript-eslint/type-utils" "5.36.1"
+    "@typescript-eslint/utils" "5.36.1"
+    debug "^4.3.4"
+    functional-red-black-tree "^1.0.1"
+    ignore "^5.2.0"
+    regexpp "^3.2.0"
+    semver "^7.3.7"
+    tsutils "^3.21.0"
+
 "@typescript-eslint/eslint-plugin@^5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.25.0.tgz#e8ce050990e4d36cc200f2de71ca0d3eb5e77a31"
@@ -2737,6 +2752,16 @@
     semver "^7.3.7"
     tsutils "^3.21.0"
 
+"@typescript-eslint/parser@^5.0.0":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-5.36.1.tgz#931c22c7bacefd17e29734628cdec8b2acdcf1ce"
+  integrity sha512-/IsgNGOkBi7CuDfUbwt1eOqUXF9WGVBW9dwEe1pi+L32XrTsZIgmDFIi2RxjzsvB/8i+MIf5JIoTEH8LOZ368A==
+  dependencies:
+    "@typescript-eslint/scope-manager" "5.36.1"
+    "@typescript-eslint/types" "5.36.1"
+    "@typescript-eslint/typescript-estree" "5.36.1"
+    debug "^4.3.4"
+
 "@typescript-eslint/parser@^5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-5.25.0.tgz#fb533487147b4b9efd999a4d2da0b6c263b64f7f"
@@ -2755,6 +2780,14 @@
     "@typescript-eslint/types" "5.25.0"
     "@typescript-eslint/visitor-keys" "5.25.0"
 
+"@typescript-eslint/scope-manager@5.36.1":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-5.36.1.tgz#23c49b7ddbcffbe09082e6694c2524950766513f"
+  integrity sha512-pGC2SH3/tXdu9IH3ItoqciD3f3RRGCh7hb9zPdN2Drsr341zgd6VbhP5OHQO/reUqihNltfPpMpTNihFMarP2w==
+  dependencies:
+    "@typescript-eslint/types" "5.36.1"
+    "@typescript-eslint/visitor-keys" "5.36.1"
+
 "@typescript-eslint/type-utils@5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-5.25.0.tgz#5750d26a5db4c4d68d511611e0ada04e56f613bc"
@@ -2764,11 +2797,26 @@
     debug "^4.3.4"
     tsutils "^3.21.0"
 
+"@typescript-eslint/type-utils@5.36.1":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/type-utils/-/type-utils-5.36.1.tgz#016fc2bff6679f54c0b2df848a493f0ca3d4f625"
+  integrity sha512-xfZhfmoQT6m3lmlqDvDzv9TiCYdw22cdj06xY0obSznBsT///GK5IEZQdGliXpAOaRL34o8phEvXzEo/VJx13Q==
+  dependencies:
+    "@typescript-eslint/typescript-estree" "5.36.1"
+    "@typescript-eslint/utils" "5.36.1"
+    debug "^4.3.4"
+    tsutils "^3.21.0"
+
 "@typescript-eslint/types@5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-5.25.0.tgz#dee51b1855788b24a2eceeae54e4adb89b088dd8"
   integrity sha512-7fWqfxr0KNHj75PFqlGX24gWjdV/FDBABXL5dyvBOWHpACGyveok8Uj4ipPX/1fGU63fBkzSIycEje4XsOxUFA==
 
+"@typescript-eslint/types@5.36.1":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-5.36.1.tgz#1cf0e28aed1cb3ee676917966eb23c2f8334ce2c"
+  integrity sha512-jd93ShpsIk1KgBTx9E+hCSEuLCUFwi9V/urhjOWnOaksGZFbTOxAT47OH2d4NLJnLhkVD+wDbB48BuaycZPLBg==
+
 "@typescript-eslint/typescript-estree@5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-5.25.0.tgz#a7ab40d32eb944e3fb5b4e3646e81b1bcdd63e00"
@@ -2782,6 +2830,19 @@
     semver "^7.3.7"
     tsutils "^3.21.0"
 
+"@typescript-eslint/typescript-estree@5.36.1":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-5.36.1.tgz#b857f38d6200f7f3f4c65cd0a5afd5ae723f2adb"
+  integrity sha512-ih7V52zvHdiX6WcPjsOdmADhYMDN15SylWRZrT2OMy80wzKbc79n8wFW0xpWpU0x3VpBz/oDgTm2xwDAnFTl+g==
+  dependencies:
+    "@typescript-eslint/types" "5.36.1"
+    "@typescript-eslint/visitor-keys" "5.36.1"
+    debug "^4.3.4"
+    globby "^11.1.0"
+    is-glob "^4.0.3"
+    semver "^7.3.7"
+    tsutils "^3.21.0"
+
 "@typescript-eslint/utils@5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-5.25.0.tgz#272751fd737733294b4ab95e16c7f2d4a75c2049"
@@ -2794,6 +2855,18 @@
     eslint-scope "^5.1.1"
     eslint-utils "^3.0.0"
 
+"@typescript-eslint/utils@5.36.1":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/utils/-/utils-5.36.1.tgz#136d5208cc7a3314b11c646957f8f0b5c01e07ad"
+  integrity sha512-lNj4FtTiXm5c+u0pUehozaUWhh7UYKnwryku0nxJlYUEWetyG92uw2pr+2Iy4M/u0ONMKzfrx7AsGBTCzORmIg==
+  dependencies:
+    "@types/json-schema" "^7.0.9"
+    "@typescript-eslint/scope-manager" "5.36.1"
+    "@typescript-eslint/types" "5.36.1"
+    "@typescript-eslint/typescript-estree" "5.36.1"
+    eslint-scope "^5.1.1"
+    eslint-utils "^3.0.0"
+
 "@typescript-eslint/visitor-keys@5.25.0":
   version "5.25.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-5.25.0.tgz#33aa5fdcc5cedb9f4c8828c6a019d58548d4474b"
@@ -2802,6 +2875,14 @@
     "@typescript-eslint/types" "5.25.0"
     eslint-visitor-keys "^3.3.0"
 
+"@typescript-eslint/visitor-keys@5.36.1":
+  version "5.36.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-5.36.1.tgz#7731175312d65738e501780f923896d200ad1615"
+  integrity sha512-ojB9aRyRFzVMN3b5joSYni6FAS10BBSCAfKJhjJAV08t/a95aM6tAhz+O1jF+EtgxktuSO3wJysp2R+Def/IWQ==
+  dependencies:
+    "@typescript-eslint/types" "5.36.1"
+    eslint-visitor-keys "^3.3.0"
+
 "@vue/babel-helper-vue-jsx-merge-props@^1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@vue/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-1.2.1.tgz#31624a7a505fb14da1d58023725a4c5f270e6a81"
@@ -3083,6 +3164,15 @@
     eslint-import-resolver-node "^0.3.4"
     eslint-import-resolver-webpack "^0.13.1"
 
+"@vue/eslint-config-typescript@11.0.0":
+  version "11.0.0"
+  resolved "https://registry.yarnpkg.com/@vue/eslint-config-typescript/-/eslint-config-typescript-11.0.0.tgz#bac0cb2d381625b5bf568d2025acffc0fd09113e"
+  integrity sha512-txuRzxnQVmtUvvy9UyWUy9sHWXNeRPGmSPqP53hRtaiUeCTAondI9Ho9GQYI/8/eWljYOST7iA4Aa8sANBkWaA==
+  dependencies:
+    "@typescript-eslint/eslint-plugin" "^5.0.0"
+    "@typescript-eslint/parser" "^5.0.0"
+    vue-eslint-parser "^9.0.0"
+
 "@vue/vue-loader-v15@npm:vue-loader@^15.9.7", vue-loader@^15.9.6:
   version "15.9.8"
   resolved "https://registry.yarnpkg.com/vue-loader/-/vue-loader-15.9.8.tgz#4b0f602afaf66a996be1e534fb9609dc4ab10e61"
@@ -9716,6 +9806,19 @@ vue-eslint-parser@^8.0.0:
     lodash "^4.17.21"
     semver "^7.3.5"
 
+vue-eslint-parser@^9.0.0:
+  version "9.0.3"
+  resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-9.0.3.tgz#0c17a89e0932cc94fa6a79f0726697e13bfe3c96"
+  integrity sha512-yL+ZDb+9T0ELG4VIFo/2anAOz8SvBdlqEnQnvJ3M7Scq56DvtjY0VY88bByRZB0D4J0u8olBcfrXTVONXsh4og==
+  dependencies:
+    debug "^4.3.4"
+    eslint-scope "^7.1.1"
+    eslint-visitor-keys "^3.3.0"
+    espree "^9.3.1"
+    esquery "^1.4.0"
+    lodash "^4.17.21"
+    semver "^7.3.6"
+
 vue-eslint-parser@^9.0.1:
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-9.0.2.tgz#d2535516f3f55adb387939427fe741065eb7948a"