Extrinsic 44502-1

{
  "heartbeat": {
    "blockNumber": 44500,
    "sessionIndex": 741,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xc2ccbb18e9b7b30c1102ce7d53309b0e9a10bcd4eb9945d84ad41146e8f72918fa1cff6a9e9072749207940618bac856eee488056bc3adf6b25b43cf60233d8d"
}