{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1849279881",
    "entityType": "Track",
    "nonce": "0x4be9b9da3cbe711a88622d32998f1487165c38069965f96e386c59728f7b8656",
    "signature": "0x227e8ea60da5c5a61c366cf88615c54ef188d0d0b85651a4d0e4d4409f16fd6f0944768847fc9c88fa819f27b08b4afb0ca268c7b233512af54b0e68358791691b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}