Extrinsic 34476-1

{
  "heartbeat": {
    "blockNumber": 34475,
    "sessionIndex": 574,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc2474288a4697efb8c0c2edbdeb241db69da2a29614d996bab42f516fc4af90a0caa8db9aad25c3329b2d92593dfafa25ae8a91cee0bd3e386738dc61e4cd88a"
}