Extrinsic 31332-1

{
  "heartbeat": {
    "blockNumber": 31331,
    "sessionIndex": 522,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x60890d05b3ed46dddf1d4629ba37a5cb7b6dd0f1bef2a949bf97c0249f8f5550dd6fb5d7553d99a04e76622dcff31770989725318c3442e59f232d78af35d680"
}