Extrinsic 48515-1

{
  "heartbeat": {
    "blockNumber": 48514,
    "sessionIndex": 808,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x48a165aaebd34b29b9ba80e0cb888742aeb7ce247a23e68cf24510c6c2562423e9899d89d6e40ff0a8609fcf3f7afaf98c0b9008d82a43ba132d4029bd07268f"
}