Extrinsic 119977-1

{
  "heartbeat": {
    "blockNumber": 119976,
    "sessionIndex": 1999,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x4e15511462e8c343ea56522b05cc117a55d18b6cf616f7cd4fe8dd4d9fcee36d5705b6c674befa295bd9b4364b1c25dba86621ac9d1d82f6ca35ffcf69d97b87"
}