Extrinsic 41688-1

{
  "heartbeat": {
    "blockNumber": 41687,
    "sessionIndex": 694,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x0ac65587aaefe46e519ec49c93bbf4352aa514ae2272a62b7dc178435e6b362f1884d6f590f8cd6b770a03fc3042fd986fccd484998606a81359b6a88b8fca86"
}