Extrinsic 147327-1

{
  "heartbeat": {
    "blockNumber": 147325,
    "sessionIndex": 2455,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x5aba8e88fa558e1e6bb02adf78604f72d4165c73d19f3b343d5f6504a3c903434762e35b8f4b5f9d0274d6e12b817f627f6caedd19315262b7085d529ce6c689"
}