tencent cloud

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

{
    "From_Account":"user0",
    "MarkItem":[
        {
            "OptType":3,
            "ContactItem":{
                "Type":1,                   
                "To_Account":"user1"
            },
            "SetMark":[1,2,3],
            "CustomMark":"abcd"
        }
    ]
}

A standard conversation mark has 64 bits in total: the first 32 bits are internally used by Chat, and the last 32 bits are extended bits that can be customized by customers. Internal bits are described as follows:
Bit 1: Mark a conversation as "favorite"
Bit 2: Mark a conversation (important conversation) as unread
Bit 3: Mark a conversation as collapsed
Bit 4: Mark a conversation as hidden

{
    "ResultItem": [
        {
            "OptType":3,
            "ContactItem": {
                "Type": 1,
                "To_Account": "user1"
            },
            "ResultCode": 0,
            "ResultInfo": ""
        }
    ],
    "ActionStatus": "OK",
    "ErrorCode": 0,
    "ErrorInfo": "",
    "ErrorDisplay": ""
}