Extrinsic 68407-1

{
  "heartbeat": {
    "blockNumber": 68406,
    "sessionIndex": 1140,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb41be36f0536c292d9bff23cfed3c3a9fe94531af51a9e44bf312b726f12e2495e0e8c094b982f73be2000b7db14193cc71c68c78a5b061f3cd20a45f4ed0e89"
}