tencent cloud

https://xxxxxx/v4/group_open_http_svc/send_broadcast_msg?sdkappid=88888888&identifier=admin&usersig=xxx&random=99999999&contenttype=json

{
    "From_Account": "test",  // 指定消息发送者（选填）
    "Random":8912345,  // 随机数字，五分钟数字相同认为是重复消息
    "MsgBody": [ 
        {
            "MsgType": "TIMCustomElem",  // 自定义消息
            "MsgContent": {
                "Data": "{ \\"type\\":1, \\"content\\":\\"hello world\\"}"
            }
        }
    ],
    "CloudCustomData": "your cloud custom data"
}

{
    "ActionStatus": "OK",
    "ErrorInfo": "",
    "ErrorCode": 0,
    "MsgSeq": 1283
}