Extrinsic 22781-1

{
  "heartbeat": {
    "blockNumber": 22779,
    "sessionIndex": 379,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x02930e2cf2fb5db8c193179ef754078b04108f898a9e43d7ac5ce529a44691125d38c7730750475d42a51a711aff8672245506fccfaa7e5993dddba25d3eec8b"
}