Extrinsic 63455-1

{
  "heartbeat": {
    "blockNumber": 63454,
    "sessionIndex": 1057,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xaa108629b431bab2a91f2b7594d094ef9c60b6242a8b3859f89516281166463f2c4452651cfec6b87d27e8d4c199253370d38ba6f0591c88c0cc3113d192a588"
}