Extrinsic 44441-1

{
  "heartbeat": {
    "blockNumber": 44440,
    "sessionIndex": 740,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x800677599c4d1a4a99269a3d47bed798efadf9b2a8f7cf8f13f13571314ea0404123701eb1390304adf627619f8918f79a20035ca910138b82f91fbf81c32e84"
}