Extrinsic 40656-1

{
  "heartbeat": {
    "blockNumber": 40655,
    "sessionIndex": 677,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x3294c83ad097902587d55ecad7032043d8adf3806fa454c0adbd3ef4a4b89d1c299e5c6d469fe50b3b8394769bbc701ee3181af7a7e5aa08866b218ccbf11d8a"
}