token是使用第三方平台获取的调用凭据，mobile_app_id是乱填的，想试试接口能不能用，结果一直报这个错误，等了几个小时还是报。
数据源查询的get接口是正常的，没有错误信息，add接口一直报错。第一次请求时还出现过 API UnKnown这种错误。。后面再请求一直返回下面的信息了
curl -i "https://api.weixin.qq.com/marketing/user_action_sets/add?version=v1.0&access_token=token" -H "Content-Type:application/json"
 -d '{ "type": "ANDROID", "mobile_app_id":"111111222","name": "swewewewe","description": "test"}'
HTTP/1.1 200 OK
Connection: keep-alive
Content-Type: application/json;charset=utf-8
Date: Tue, 17 Mar 2020 06:40:11 GMT
Server: nginx
X-TSA-Trace-Id: 2be6f723bc0ea378a238f5bae3402e76
Content-Length: 196

{"errcode":900351001,"errmsg":"We are unable to process your request at this time. Please retry your request.
 If you encounter this error repeatedly, please contact our dedicated operation team."}