{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1347196354",
    "entityType": "Track",
    "nonce": "0x2e7adb754d98de3149cbb56003b610d2c558abb60300ef8ba44679be8dd50489",
    "signature": "0x64a6509eeedef97ec64f08a85bfc4ad79be7f88225e2f3beb129c2e8a3f0120c54016a979eec09b97d5c8d668193fdd8566f2b5d4d6a55247a371ef816129aa51b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}