{
  "manageEntity": {
    "action": "Save",
    "entityId": "1114519052",
    "entityType": "Track",
    "nonce": "0xef12d1c6e7a6609930992130209084693de09ad083885b814d8b8407fa3d1de8",
    "signature": "0xdc4d7768ca87df4ad90331c3565bd9b37ccd9b459baab3031d8f5dfeb3326a3c68be4135643a1f100e6b437f25de025f5328eefc5a664b69c948d5c14c733a4e1c",
    "signer": "0x92a5082636c97Db0Ae888484D85e4c8494A3B791",
    "userId": "895527427"
  }
}