Extrinsic 40161-1

{
  "heartbeat": {
    "blockNumber": 40160,
    "sessionIndex": 669,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xd8b7c29cd3ebdfd5ab21e30ea8130fef24fd5feb960c7aee3abb844d67cf93340e8b34f8e48356f2edde54cb77f4a5a1933c41ca686d1b61f56df801ae93728f"
}