Extrinsic 41079-1

{
  "heartbeat": {
    "blockNumber": 41077,
    "sessionIndex": 684,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xa4da7004e03a79be360d190fb0b83ca982f53ef39b4a63ee1c3575895d5433352271c94fb0ec9bdd6ae29910fffa630cbd643fc2298043b2ea10af8ca0a4198d"
}