Extrinsic 26742-1

{
  "heartbeat": {
    "blockNumber": 26741,
    "sessionIndex": 445,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x6e1b986b061577976df387afd1aa8b5a475f9cde879ad49d57eeffb99cb2c63db7e44c1d2e08b2fe2e43cf9537dc37c10f128c62fc40adca52efcb40afa45683"
}