{
  "manageEntity": {
    "action": "Download",
    "entityId": "1739568680",
    "entityType": "Track",
    "nonce": "0xc40b09189859ebabfee2fbe9fd50e8f316cd4ec4fac5023e714a351f297bb590",
    "signature": "0x9b622938082fa352c2600502d5402266e6b8f9e67aaed9ca4cf33449712effb8313232571dad533838bfb1dbfa443ab0c45653a7da08d1946777147989ed177c1b",
    "signer": "0x306495Aa3660C22f1D9875eb0dE750B688de5746",
    "userId": "1885753"
  }
}