获取会话列表

{
  "code": 0,
  "msg": "",
  "traceId": "",
  "data": {
    "data": [
      {
        "groupId": "",
        "toUserInfo": {
          "uid": 0,
          "nickName": "",
          "avatar": ""
        },
        "updateDate": "",
        "LeastMessage": {
          "groupId": "",
          "sysTag": 0,
          "sysTagSmall": 0,
          "msgSysId": 0,
          "type": "",
          "typeExtend": "",
          "effectsShow": 0,
          "fromUid": 0,
          "toUid": 0,
          "title": "",
          "content": "",
          "isRead": 0,
          "isFirst": 0,
          "createDate": "",
          "msgBody": {
            "businessType": 0,
            "privateMessageBody": {
              "privateMessageEvent": 0,
              "privateCommonMessageBody": {
                "content": ""
              }
            },
            "systemMessageBody": {
              "systemMessageEvent": 0,
              "systemCommonMessageBody": {
                "systemMessageType": 0,
                "title": "",
                "content": "",
                "picUrl": "",
                "jumpUrl": ""
              },
              "systemBoxMessageBody": {
                "content": ""
              }
            }
          },
          "msgId": "",
          "eventType": 0,
          "businessType": 0
        }
      }
    ],
    "offset": 0,
    "hasMore": false
  }
}