Broadcast entity is for setting up HTML video player, which serves to combine:
If you use other players or you get streams by direct .m3u8/.mpd links, then you will not need this entity.
Scheme of “broadcast” entity using:

API key for authentication. Make sure to include the word apikey, followed by a single space and then your token.
Example: apikey 1234$abcdef
{
"name": "Broadcast",
"status": "live",
"share_url": "",
"custom_iframe_url": "",
"show_dvr_after_finish": true,
"ad_id": 1,
"player_id": 14,
"stream_ids": [10]
}