{
  "manageEntity": {
    "action": "Download",
    "entityId": "964956558",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"České Budějovice\",\"region\":\"South Bohemian Region\",\"country\":\"Czechia\"}}",
    "nonce": "0xb102ecbf1c25abd3a34a5df96c2ea7ecb3e4a3f5160ebc8d5bf7e5aa5552d6f4",
    "signature": "0xb6adf5f4a060ddc5aaae1eda79e43d8c2eab9f0f807da2e01c021b7a8db8c42512afcf4f481165c649912b23d7b3c79b9cc55336e34f955941606c2cee6f5ea61b",
    "signer": "0xeaeE51782bb4894387908A098D4114488f1d2585",
    "userId": "121125"
  }
}