{
  "$schema": "https://www.atsc-schemas.org/atsc3.0/a344/20230217/org.atsc.notify-rmpMediaTimeChange.json",
    "jsonrpc": "2.0",
    "method": "org.atsc.notify",
    "params":{
       "msgType": "rmpMediaTimeChange",
       "currentTime": 3600.283
     }
}