Extrinsic 34876-1

{
  "heartbeat": {
    "blockNumber": 34874,
    "sessionIndex": 581,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x70ef04e92d062bf2f92a3fe6b74035232753f88e4701f68e60777642eabd18399fe731888b6237b43e130ca06bf3cbcbccba433ec4c6a932cb45e92e8bd25283"
}