Extrinsic 34069-1

{
  "heartbeat": {
    "blockNumber": 34067,
    "sessionIndex": 567,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x72fca00356cc6f3b6f30ee460efef41aa651ccd79f3cf3cbbbb13de45cc3756c5920f6eba3966ba368992c27875a208ed2bf87167d65591791faa0fc4b13b388"
}