Extrinsic 44731-1

{
  "heartbeat": {
    "blockNumber": 44729,
    "sessionIndex": 745,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x3681d857d662740f38fbf1b872349a9d74b095b331bed94819c592f45b2b911a54581ec9039c88e640324ce90b8d369c90ae9d19cbc72bd31741d844e6f7dc8e"
}