{
  "manageEntity": {
    "action": "Download",
    "entityId": "468590768",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Mandalay\",\"region\":\"Mandalay Region\",\"country\":\"Myanmar\"}}",
    "nonce": "0xb60d15a939978156d0d2a00a9d79f8140ed1219dd7afa8e9a08be6e455362578",
    "signature": "0x14f6e321dc24bbe81c54abf079b3ac90eb8c42068f67bfec417934c12437d46a3073c35b8882e2b8923b7e522ffbbbd62533ae9c6c4e778801c5b6dd83e339591b",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}