Extrinsic 409274-1

{
  "heartbeat": {
    "blockNumber": 409273,
    "sessionIndex": 6821,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb6f44b8772af81eb14d4f75d9b136c1ec5db4eaf24b7dac201d07400fca7bd5d1fdd7f8c47be76b4bb1c9d5cbf7597bc80cf2409923f1a29b69117fc1ee2bb8d"
}