Extrinsic 41017-1

{
  "heartbeat": {
    "blockNumber": 41015,
    "sessionIndex": 683,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa64b7dd7a3a888e609655dbcbecf605bc555e35a26d71570261250c650539e6585dbb12413d67cc2dc95c30da0151b1091063a264d27644d737b523a8eeba58f"
}