{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1980251854",
    "entityType": "Track",
    "nonce": "0x25bb2f61081394a453736e6fa8da8871c6052146651c729251bbf4912366462a",
    "signature": "0xa8daf80e0b7a9271f0148f957e40699d8cae40b7eecd330dab3ac99194cc0c466e15b84a3f38e4aaf2f22d696ed55121808de4b52c94fdf4dd55e4ecb557d9f51b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}