Extrinsic 123288-1

{
  "heartbeat": {
    "blockNumber": 123287,
    "sessionIndex": 2054,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x9c7c5cb1f5436bc2f9b482a08d768b91c8ed5dfd388fc452b93f9dd689386851f767d1a4aa98b8332a65a62fcc03655a17219ac78a53906880828c9c2d5fcd80"
}