{
  "manageEntity": {
    "action": "Download",
    "entityId": "442611227",
    "entityType": "Track",
    "nonce": "0xb2183934bc5da69f3c522e59f2c81201a842ac52624ef01bc955a52d08d4c047",
    "signature": "0x9675fb31e1d3778808e0a332aaca3a39c6da0aeed7e4def6d0a5c7fb44f0db747cedeeecd4edd4ab79b52a9e60e2f32a354a8778e081e83a3039313b5a048bb01b",
    "signer": "0xb69378245091a2698004E9133B69F31277A55b33",
    "userId": "90532574"
  }
}