{
  "manageEntity": {
    "action": "Save",
    "entityId": "1017996304",
    "entityType": "Track",
    "nonce": "0x2c0a2a94ee9b7cdf9bc22c15157d05a9dad688e0df792754be79d7090bd1f892",
    "signature": "0x2e03e1882e7f67f2ae68b8bc69cd2cdc26d324bc0a91f9f7012946c71000adb479679cab4bc865764636a844d6af5658557f1675bd8537d38783bff9fb61f71d1c",
    "signer": "0x80db91E6884574061DD46073f2AE0c6238A148FA",
    "userId": "793212012"
  }
}