diff --git a/index.d.ts b/index.d.ts
index ef1ee57..24cbd92 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -33,8 +33,8 @@ declare class Lunar {
   public getData({ contract, func, params, data }: { contract: string, data?: string, func?: string, params?: string[], state?: string }): Promise<string>;
   public send({ to, amount, data }: { to: string, amount: number, data:string }): Promise<string>;
   public signTypedData(params: IJSON): Promise<string>;
-  public verify(message: string, signature: string): boolean;
-  public verifyTypedData(params: IJSON, signature: string): boolean;
+  public verify(message: string, signature: string, expectSigner?: string): boolean;
+  public verifyTypedData(params: IJSON, signature: string, expectSigner?: string): boolean;
   public interfaceOf({ contract, abi }: { contract: string, abi: any }): Promise<any>;
 }
 export default Lunar;
diff --git a/package.json b/package.json
index 80a2cb3..e2cd46a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cafeca/lunar",
-  "version": "0.5.6",
+  "version": "0.5.7",
   "description": "Blockchain Connect Module",
   "main": "dist/index.js",
   "files": [
diff --git a/src/index.ts b/src/index.ts
index 410eba9..aeae223 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -23,7 +23,7 @@ declare global {
 export class Lunar {
   private static instance: Lunar;
   // static version = `v${version}`;
-  public static version = `v0.5.6`;
+  public static version = `v0.5.7`;
   public static Blockchains = Blockchains;
   public static Wallets = Wallets;
   public static keccak256 = keccak256;
@@ -208,7 +208,7 @@ export class Lunar {
     const message = JSON.stringify(params);
     const json = JSON.parse(message);
     const address = json?.message?.signer;
-    const expectSigner = signer || address || '';
+    const expectSigner = address || signer || '';
     const result = address?
       (expectSigner === address.toLowerCase() && this.verify(message, signature, expectSigner)) :
       this.verify(message, signature, expectSigner);