diff --git a/login-app/src/main/java/ink/wgink/login/app/service/appsign/impl/AppSignServiceImpl.java b/login-app/src/main/java/ink/wgink/login/app/service/appsign/impl/AppSignServiceImpl.java
index 9fdfa93b..54b1f4ba 100644
--- a/login-app/src/main/java/ink/wgink/login/app/service/appsign/impl/AppSignServiceImpl.java
+++ b/login-app/src/main/java/ink/wgink/login/app/service/appsign/impl/AppSignServiceImpl.java
@@ -123,4 +123,9 @@ public class AppSignServiceImpl extends BaseAppSignService implements IAppSignSe
         }
     }
 
+    @Override
+    public String userIdSign(String userId) throws UnsupportedEncodingException {
+        UserPO userPO = userService.getPO(userId);
+        return getToken(userPO);
+    }
 }