{
  "$schema": "https://www.atsc-schemas.org/atsc3.0/a344/20260218/org.atsc.notify-rmpPlaybackStateChange.json",
    "jsonrpc": "2.0",
    "method": "org.atsc.notify",
    "params": {
        "msgType": "rmpPlaybackStateChange",
        "playbackState": 1
    }
}