Extrinsic 40522-1

{
  "heartbeat": {
    "blockNumber": 40520,
    "sessionIndex": 675,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xb63960e681703a204f467e459f9d617f52d0ff0c97aedf39c5bace35651cca607f5c378a89b6ae53a0e93a514bd10860b23866fa3bae6f0a43e6399d08c97e84"
}