Extrinsic 22724-1

{
  "heartbeat": {
    "blockNumber": 22723,
    "sessionIndex": 378,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x3a103794a9e778f70a3ce6ebc7fae64117d7f3b848c8ea121ab86437c81fb5777bf617d8da45aaff89d68addb9c361a32d334675387f50d5637cf937e276b783"
}