{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1984685519",
    "entityType": "Track",
    "nonce": "0xd32336e8f008ac30525ed7290930b71f86bfb3e2a65cab161694fa0f4ef2709b",
    "signature": "0x7616132a224e61a44b5b43b56cfc0200aa0bf06a48e673b9171d20d1cb8abd46273d41bfab0f2e432ab074ff43be63549449b5b54f24caee75951607e9bf05001b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}