{
  "manageEntity": {
    "action": "Save",
    "entityId": "1095486216",
    "entityType": "Track",
    "nonce": "0xb7aa2672378aaac69c4c082637039c267c43e8bbb8dc39147dd83202fa9ddd29",
    "signature": "0x896ef8cee2c4945499870eda7449ebb536e16acc1d8422dc27bbec91253a098b14c261e309ad4c861daded1c96652453739131eb612c3fef7cbb6e475b2b988d1c",
    "signer": "0x96d53D932424EC157ea945eF88e9756380a395A6",
    "userId": "488580615"
  }
}