Extrinsic 22701-1

{
  "heartbeat": {
    "blockNumber": 22700,
    "sessionIndex": 378,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x4af444538b9aa02e912991fc1062933a5c17688916584b56bfe36103d0ba9e4f1e9a16d60e53072f3e2671cf49cc6e8874c4da680164343544c99b3155661d83"
}