记录时间：2026-06-20 13:40:57,059 [123] ERROR 
错误描述： 外部调用/external/gateway 
merchantCode=8161418513&param_json=%7b%22appId%22%3a%22wxe73a4591096a31a4%22%2c%22format%22%3a%22json%22%2c%22merchantCode%22%3a%228161418513%22%2c%22method%22%3a%22store.queryByMerchant%22%2c%22sign%22%3a%22FFDD045B7229B5459CBF83B57BE1751F%22%2c%22timestamp%22%3a%221781934051151%22%2c%22v%22%3a%221.0%22%7d&method=store.queryByMerchant&appId=wxe73a4591096a31a4&sign=FFDD045B7229B5459CBF83B57BE1751F&timestamp=1781934051151&format=json&v=1.0