Extrinsic 34466-1

{
  "heartbeat": {
    "blockNumber": 34464,
    "sessionIndex": 574,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x8e0fb71c5cd9abad972f616e24ef7ff934f24ef28aa6747b8a43b5efc94364044866cad51c764d8ae1ed9b385107c05799e21f8c1b0d0f93ef90de26bb3dab88"
}