获取roomtoken

{
    "code": 200,
    "msg": "",
    "data": {
        "token": {
            "screen_token": "46x3OhwgfdjmtwaNFhPiQEvs948gtMKKJbjXlvKr:w4cNJlBuZOMWhCK7doNKcP1iXsY=:eyJhcHBJZCI6ImljaGE5anQ3MyIsInVzZXJJZCI6InVzZXItY2FtZXJhLTMwMzgtMTY3MjgiLCJyb29tTmFtZSI6InNhaWtyX3F1ZXN0aW9uX2V4YW1fMzAzOCIsInBlcm1pc3Npb24iOiJ1c2VyIiwiZXhwaXJlQXQiOjE3NjAyNjMzMDJ9",
            "camera_token": "46x3OhwgfdjmtwaNFhPiQEvs948gtMKKJbjXlvKr:is6TDyPuu_8mdVOTzy55RpjObiA=:eyJhcHBJZCI6ImljaGE5anQ3MyIsInVzZXJJZCI6InVzZXItc2NyZWVuLTMwMzgtMTY3MjgiLCJyb29tTmFtZSI6InNhaWtyX3F1ZXN0aW9uX2V4YW1fMzAzOCIsInBlcm1pc3Npb24iOiJ1c2VyIiwiZXhwaXJlQXQiOjE3NjAyNjMzMDJ9"
        }
    }
}