{
  "manageEntity": {
    "action": "Download",
    "entityId": "1870610678",
    "entityType": "Track",
    "nonce": "0x50df847bb6c781b4b036635ee6b90c73a867b48707170da24e45844bfaa3753e",
    "signature": "0x9cb9475c08b1cc4c3c4375971834d280f98d00c1afa9d9c51865e699e9cd666831f6838c483771ba46a8bd3475c4d16a62b5dbd6365efaef829dd9182e480db61c",
    "signer": "0x7d58E725Ea32a7e88B0839c4249336fE9eEC3474",
    "userId": "190661937"
  }
}