{
  "$schema": "https://www.atsc-schemas.org/atsc3.0/a344/20260218/org.atsc.eventStream.subscribe-request.json",
    "jsonrpc": "2.0",
    "method": "org.atsc.eventStream.subscribe",
    "params": {
        "schemeIdUri": "urn:uuid:1AD2F3EF-87C8-46B4-BD1D-94C174C278EE",
        "value": "17"
    },
    "id": 23
}