{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "247291",
    "entityType": "Track",
    "nonce": "0xce7433214200563b83bf1609b2478bf8e073dc0ec6d1be30ab1586629d5ceb19",
    "signature": "0xcba30ed6b924146170291ada93d3e1d37957744ff2aaf05e3f186fd290e5bbdb6d81408bba27d3739497c46f26ea6cb97a97818fb81b628ccbe8277b61f2efe21c",
    "signer": "0x77716b11b242ACc386023E99B7e647CaCCcbb8b6",
    "userId": "126786"
  }
}