Extrinsic 123558-1

{
  "heartbeat": {
    "blockNumber": 123557,
    "sessionIndex": 2059,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xca3897859e80f9fe6dd4002f6654ebe71fc1a4cf0dfd18cf43f6a5041614433a43f8ea26f81eb3c67b912d4eeff0969014bd275727a4b07927d573f6f1214383"
}