    URL    = "https://b24-ar17wx.bitrix24.by/rest/1/h0m...";
    ChatID = "3516";

    OPI_TypeConversion.GetLine(ChatID);
    ChatString = "chat" + ChatID;

    MessageID = "70382";

    Result = OPI_Bitrix24.MarkMessageAsReaded(URL, ChatString, MessageID);

    URL       = "b24-ar17wx.bitrix24.by";
    Token     = "6ad03969006e9f06006b12e400000001000...";
    UserID    = 10;
    MessageID = "70384";

    Result = OPI_Bitrix24.MarkMessageAsReaded(URL, UserID, MessageID, Token);
