Extrinsic 72999-1

{
  "heartbeat": {
    "blockNumber": 72998,
    "sessionIndex": 1216,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x98b99538eec67776d138186981e457ba00e7dbeb7a69f797f83e0565bb58541b8ace7e9108457d62c8aadc68436cb4fba4ecce0104f070aba76c81bd4a09198b"
}