{
  "manageEntity": {
    "action": "Save",
    "entityId": "1733226252",
    "entityType": "Track",
    "nonce": "0xd963be946ef231b5518116d0d79efac62193144e317c35c3358589d2bca6b108",
    "signature": "0xc311acf14dae09ff6f6bde391071a584f5ed9f25704e5000eaa240c8a1610c34555bc4663870d243bf55d905ad79efd88145a29f4138e6139110ea2e47dfeb8f1b",
    "signer": "0xD06A00B950F1f08B348e3cEf0B75Da0010adF313",
    "userId": "238712"
  }
}