{
  "manageEntity": {
    "action": "Save",
    "entityId": "1346124113",
    "entityType": "Track",
    "nonce": "0x06ee58afd423c51a0854a215da167d3b559111c9d5a2474ec84ae111c411d0bc",
    "signature": "0x81cb1b960636ff4b114c37a4f908324f9696ce29f49c02dc7230abdb70b07f2149c7013ea93c75a262172bcd5e4780602c1fa9d3327c8cee6497d4333f7d4b2d1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}