Extrinsic 44073-1

{
  "heartbeat": {
    "blockNumber": 44072,
    "sessionIndex": 734,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x9c82fb1942ee675459fdbb981a34bd55d888c0eb793a64e3739bdaf69d312e3ac3d9b08a6cea52327b07c3cadb506b94408846537820e315ed2ba69bf5e27485"
}