获取群设定欢迎语

GetUserCommand请求:
{
  "uid": "1688850475043111",
  "finduid": "R:10964441188989310",
  "type": 205
}

返回json
{
  "data": [
    {
      "createtime": "1652104387",
      "leader": "1688850475043829",
      "name": "14545",
      "uid": "R:10964441188989310",
      "welcomeid": 0
    }
  ],
  "fromQw": "1688850475043829",
  "type": 2000
}