Extrinsic 177996-1

{
  "heartbeat": {
    "blockNumber": 177994,
    "sessionIndex": 2966,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x70dbd4b5fa34eeb55dc15ab576773ffd377ed72b9ba301a7a46cd5bd0ad7df3a753ce268c6c27576f0d8111ff14fe112c3126f4d9324de9e639edf3d6548c586"
}