Extrinsic 125313-1

{
  "heartbeat": {
    "blockNumber": 125312,
    "sessionIndex": 2088,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x28f0334e3f1bd6090fc9797600111db4f33e4420de1b57be002c849cc895180f8908d5c16eef19bccb45620aa51f24a311802bb16090967995f7e9d496daa68d"
}