PurchaseEditModel

{
    "UnitPrice": 0.01,
    "Count": 1,
    "WearMin": 0,
    "WearMax": 0,
    "Style": 0,
    "SteamID": "string",
    "IsSupportPreSale": true,
    "PurchaseId": "string",
    "FadeMin": 0,
    "FadeMax": 0,
    "PartnerId": "string",
    "Timestamp": "string",
    "Sign": "string",
    "ServiceProviderId": "string",
    "OpenID": "string"
}