Extrinsic 405854-1

{
  "heartbeat": {
    "blockNumber": 405853,
    "sessionIndex": 6764,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x06b9394e44ac758ed0f0b6b89cccc85f840e92228844057c332fbeab416f942d9c572b5eaf1483fa9b652bfeeca3f3bbec29d1f16a6209878bd1a3fd6c01a987"
}