{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "772913084",
    "entityType": "Track",
    "nonce": "0x10595d6ff7497797845b0ecd326b7d69e5c13f95a7209b3bc19757b2f9ad0205",
    "signature": "0x888f34b8c8c9b6a08835f87fffe17b8f91166df3028f0a9671b44faca0538c11378608414d05fe67fe8f74c2294efe40c1e18a9f49bfca2eb7489625df8de0651b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}