{
  "manageEntity": {
    "action": "Download",
    "entityId": "2047921900",
    "entityType": "Track",
    "nonce": "0x104aca635390dfdba0f7a7913021fbf4c141f028758c30b7a8cd3eac4eff8108",
    "signature": "0x5d5be9fbd2bfc8c20019c49050d22660895e3132f5187783eeaad9bbdaa8b40066550f091cbc223722cbc5304ece0b425bfb519d4b0c7e6e482f46e0f43c66de1c",
    "signer": "0x0d4389F8281aAb73bc1661BE62758626D856e22e",
    "userId": "604350519"
  }
}