{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "616427223",
    "entityType": "Track",
    "nonce": "0xd1dc1dc8edb7bd8f2161ba39a748b3d9293cbab2ea8e1f3919bf6f502cb6246b",
    "signature": "0xd2b058a8cfd8ad5f30e3e0c7dbf519cbe9034e468985189abb86f4f9fe5333df6d75e3530581bac0002b13380655a5470158988f2dc4f49c95e62732a5caf40d1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}