BroadcastCreateForm

{
    "type": 0,
    "venues": [
        {
            "uid": "string",
            "uidType": 0,
            "name": "string",
            "identifier": "string",
            "accessType": "未知"
        }
    ],
    "polling": {
        "interval": 0,
        "times": 0
    },
    "content": "string",
    "apply": "true"
}