Extrinsic 37544-1

{
  "heartbeat": {
    "blockNumber": 37543,
    "sessionIndex": 625,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xfa65b1e8ae126c885b9597f753b289218352ba979426d2fee4bdbe7a039b376d09598cee9716029a21952d3d45af8f5709a9c9ed68cd92fc792163c4fb7e208e"
}