Extrinsic 31420-1

{
  "heartbeat": {
    "blockNumber": 31418,
    "sessionIndex": 523,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x28acf95f3c6c1dc930e5bd7bf61b1668996c3a72995fff4726de824f4f97a94747358c8d59b8a0f647bbacccfdc34b9b2aa8aee417138af41889ef817c523e8f"
}