{
  "manageEntity": {
    "action": "Save",
    "entityId": "1167464029",
    "entityType": "Track",
    "nonce": "0x525e11e12d01a755f8378b5ba18534979eb8e72f811a929c6f6883a7500075eb",
    "signature": "0x956bb337a9f8433a35ae142c945bf460f6885fa167605c47c34d02f7efcbbf817e878130d46e602649df65f736f6c24fe727d894333a5ad5feed3719059917ea1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}