{
  "manageEntity": {
    "action": "Download",
    "entityId": "1480231477",
    "entityType": "Track",
    "nonce": "0xba185d12fcf6be8cd84a941afeba1966357481bae188a2b606057b8b31ce1407",
    "signature": "0x40440153fd02c32f1e4afd282532637e04fcdc93e59be3db06a5629e391f605478a22d546a542c818c42dd66ab68298b844eb9d0825313526be08e10283236471b",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}