Extrinsic 17862-1

{
  "heartbeat": {
    "blockNumber": 17860,
    "sessionIndex": 297,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x2ad1f0ac83d5f6eb74673349b2472c6cdcd671351e856d5aacf263c31617957d427f46e30156bf595d3920ce8c907248ed27327f965cccc7544f65f969d33f82"
}