Extrinsic 53064-1

{
  "heartbeat": {
    "blockNumber": 53063,
    "sessionIndex": 884,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf4c5d4edbdf8eba112d4d8b5c7a6069b168bdcde0f8839a3cd3e84a5f829417241008af1a3a2eb047ee0a171867c8314010e4ec2d1160f73dea0878ef334938e"
}