Extrinsic 37415-1

{
  "heartbeat": {
    "blockNumber": 37413,
    "sessionIndex": 623,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x0685bdd5e5be563e3c61aea9ff8f79b178eca6fed38fa4fe3acb462ce3fc043025a475117f07538414f43f98b50b5729067b50bb0914d7a9b8669380eb09ed84"
}