Extrinsic 76290-1

{
  "heartbeat": {
    "blockNumber": 76289,
    "sessionIndex": 1271,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc8a44a72d215b7e0c2acfdde759da3c40439b243c5929785d09d271c771a8125ec02a33103942b90d7045d015432efdefd6dd524bd2fc3aaea73f6ecdb46fb82"
}