Extrinsic 65258-1

{
  "heartbeat": {
    "blockNumber": 65257,
    "sessionIndex": 1087,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xaad357c6f65b78a1be94c600a8688cde193b69cbf8e9541f2cacd01977c0d4731df9cbf25d55fb69dd372c40918699efefe852e886e4d436b70a01edaab4f88b"
}