src/screens/ApproveTransaction.tsx

@@ -253,6 +253,13 @@ const ApproveTransaction = ({ route }: ApproveTransactionProps) => {
     navigation.navigate('Home');
   };
 
+  const replacer = (key: string, value: any): any => {
+    if (value instanceof Uint8Array) {
+      return Buffer.from(value).toString('hex');
+    }
+    return value;
+  };
+
   return (
     <>
       <ScrollView contentContainerStyle={styles.approveTransaction}>
@@ -278,7 +285,7 @@ const ApproveTransaction = ({ route }: ApproveTransactionProps) => {
         </Text>
         <View style={styles.messageBody}>
           <Text variant="bodyLarge">
-            {JSON.stringify(transactionMessage, null, 2)}
+            {JSON.stringify(transactionMessage, replacer, 2)}
           </Text>
         </View>
         <>