{
  "$schema": "https://www.atsc-schemas.org/atsc3.0/a344/cs-20240822/org.atsc.request.keys-request.json",
    "jsonrpc": "2.0",
    "method": "org.atsc.request.keys",
    "params": {"keys": ["Numeric", "ChannelUp", "ChannelDown"]},
    "id": 43
}