{
  "manageEntity": {
    "action": "Download",
    "entityId": "181525",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Mandalay\",\"region\":\"Mandalay Region\",\"country\":\"Myanmar\"}}",
    "nonce": "0x0bbde6614c51940fbdb6f49dcbf44d5515b8767538f732299b4dbeb9d3ad2521",
    "signature": "0x30206c85fb4c2ad651ca7041f7ccc6978dd7287f60358862a5df1242803988246391ece0c3f3f0043d16e624552deb3009728097c669552677be1c31927b0f611b",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}