chore: provide the list of wallets that support signMessage (#1717)

Co-authored-by: gagdiez <[email protected]>

docs/2.develop/integrate/backend.md

@@ -35,7 +35,16 @@ Here we use [crypto.randomBytes](https://nodejs.org/api/crypto.html#crypto_crypt
 :::
 
 ### 2. Ask the User to Sign the Challenge
-As of today only [Meteor Wallet](https://meteorwallet.app) supports the `signMessage` method needed to sign the challenge. However, we expect more wallets to support this method in the future.
+The `signMessage` method needed to sign the challenge is supported by these wallets:
+- Meteor Wallet
+- Here Wallet
+- Near Snap
+- Nightly Wallet
+- WELLDONE Wallet
+- NearMobileWallet
+- MyNearWallet
+- Sender
+
 
 The message that the user needs to sign contains 4 fields:
 - Message: The message that the user is signing.
@@ -110,4 +119,4 @@ async function fetch_all_user_keys({ accountId }) {
 }
 
 module.exports = { authenticate, verifyFullKeyBelongsToUser, verifySignature };
-```
+```