{
  "$schema": "https://www.atsc-schemas.org/atsc3.0/a344/20260218/org.atsc.subscribe-response.json",
    "jsonrpc": "2.0",
    "result": {
        "msgType": ["ratingBlock", "serviceChange", "captionState", "languagePref", "captionDisplayPrefs", "audioAccessibilityPref", "alertingChange", "contentChange", "rmpMediaTimeChange", "rmpPlaybackStateChange", "rmpPlaybackRateChange", "DRM", "xlinkResolution"]
    },
    "id": 51
}