diff --git a/plugins/jd_sign_token/main.py b/plugins/jd_sign_token/main.py
index 9fdf17c..01f3a5d 100644
--- a/plugins/jd_sign_token/main.py
+++ b/plugins/jd_sign_token/main.py
@@ -256,6 +256,7 @@ class JDTokenPlugin(MessagePluginInterface):
                 break
 
         result = False
+        self.LOG.debug(f"existing_env: {existing_env}")
         if existing_env:
             # 更新已存在的环境变量
             existing_env['value'] = token