{
  "manageEntity": {
    "action": "Download",
    "entityId": "1433516714",
    "entityType": "Track",
    "nonce": "0xfd737304927a1db7330c26be1441c4f7bbb6cb752ce924c511bbc8ec8a7246c1",
    "signature": "0x70a876a13614842675c61bdcccb33bc153fa170cf6c5dd8c2b9fd081cdd3516a160081de824c96d4cf7db84c13dcc257ca1feb47c884ea97089a1479b4e7054c1b",
    "signer": "0xCF2CF07A151ef5eA8482AEFc022299626F4A522E",
    "userId": "445518062"
  }
}