Extrinsic 22722-1

{
  "heartbeat": {
    "blockNumber": 22719,
    "sessionIndex": 378,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x16c940302b8d3c92e88142b838405c0c33b162f0434f4ba0d71592609d42da2743a3ed4009084dded4ddcf6061645b281b6e6948826c2c0cff2415972bc8d489"
}