Extrinsic 44557-1

{
  "heartbeat": {
    "blockNumber": 44556,
    "sessionIndex": 742,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0a3cea1f5921c77e9d3c54b8fba4aecb110807e6e87b89b2d0822046928e161bec55c85bc83f8918bfa342ae55cba60812d4967cc9624902e2d32eef7cc7698f"
}