错误 product_list check fail  
//这是请求包

{
 
 "openid": "o34ii5C_OGeo****",
  "notify_type": "2001",
  "notify_code": "4200030***",
  "ext_json": "{\"shipping_list\":\"[{\\\"tracking_no\\\":\\\"735962030861\\\",\\\"express_company\\\":\\\"ZTO\\\",\\\"item_list\\\":[0]}]\",\"product_additional_list\":\"{\\\"info_list\\\":[{\\\"unit_price\\\":420,\\\"number\\\":1}]}\"}"
}

//对应的订阅消息
"notify_info": {
      "notify_type": 2001,
      "content_json": "{\"cur_status\":1,\"wxa_path_query\":\"packageUser/pages/order/list\",\"product_count\":1,\"product_list\":{\"info_list\":[{\"product_img\":\"\",\"product_name\":\"打印文件: 简历(3).pdf\",\"product_path_query\":\"pages/index/index\",\"count\":1,\"single_price\":420}]}}",
      "code_state": 0,
      "code_expire_time": 1773560588
    }