Extrinsic 27075-1

{
  "heartbeat": {
    "blockNumber": 27074,
    "sessionIndex": 451,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x1e50419a3f8444ee474e39820461bfa8b573cb27f5ce003df1a69b0688660951549f393afc1583afaf157aacf4a138fa59cff8ccf2f6f673c0c8f1f90c9ad282"
}