fix:var type

@@ -57,12 +57,12 @@ class Verify extends Config
 
     /**
      * @param string $sign
-     * @param array $body
+     * @param string $body
      * @param string $signMethod
      * @param string $appid
      * @return bool|void
      */
-    public function through(string $sign, array $body, string $signMethod, string $appid)
+    public function through(string $sign, string $body, string $signMethod, string $appid)
     {
         $configs = \config(ServiceProvider::$name);