{
  "manageEntity": {
    "action": "Download",
    "entityId": "1973704841",
    "entityType": "Track",
    "nonce": "0xf0472accebdc16060862f94e04a664361eb45ac201f382a83c0c8bfe181d1a00",
    "signature": "0x24773a895fc3683afc46909e9b2ca5f8c052723b32ce0b5fafe79f83915c96ee04c7d6d549b08105c8edabe651e7951d017dbebc8d9e93640d96d2e69d7e49211c",
    "signer": "0x520214cf0e9629A411796D58D501a8A3CDa5D813",
    "userId": "23426593"
  }
}