Format public key in create validator tx body

src/screens/SignTxEmbed.tsx

@@ -277,7 +277,26 @@ export const SignTxEmbed = () => {
         return
       }
 
-      return JSONbig.stringify(transactionDetails.txBody, null, 2)
+      let txBody = transactionDetails.txBody;
+
+      // If it's a MsgCreateValidator, format pubkey in present in the message
+      if (txBody.value.messages[0].typeUrl === "/cosmos.staking.v1beta1.MsgCreateValidator") {
+        txBody = {
+          ...txBody,
+          value: {
+            ...txBody.value,
+            messages: txBody.value.messages.map((msg) => ({
+              ...msg,
+              value: {
+                ...msg.value,
+                pubkey: decodeOptionalPubkey(msg.value.pubkey),
+              },
+            })),
+          },
+        }
+      }
+
+      return JSONbig.stringify(txBody, null, 2)
     },
     [transactionDetails]
   );