{
  "manageEntity": {
    "action": "Download",
    "entityId": "599988",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"New York City\",\"region\":\"New York\",\"country\":\"United States\"}}",
    "nonce": "0x345eb13b453ac9227bb4aa157b593e7850045c9b7ad8accdeb1bd1f318c4ed7d",
    "signature": "0x1b6adbd40f8d9932950135044eb440f3c5ddeb3591204a4b30db18f9fb17c83c16ae6aa3510c12c8cbe667bd17c250a4cdc75dc3b075f006248f6ea5a22028bb1b",
    "signer": "0xc2c6810DEdf2603EDe939aA892eB628B2D743906",
    "userId": "958345764"
  }
}