OrderItem

{
    "title": "string",
    "amount": "string",
    "source": {
        "type": "AlprTransaction"
    },
    "details": {
        "siteSessionId": "string",
        "parkingStartDateTime": "2019-08-24T14:15:22.123Z",
        "parkingEndDateTime": "2019-08-24T14:15:22.123Z",
        "isMonthlyParkingFee": true
    }
}