Content site access via order attribute

Create an order with an order attribute e.g. username

URL: POST: /rest/{client}/subscriptions/

{
    "promotionSource" : "WEBSHOP",
    "offerCode" : "BAR1",
    "publication" : "00000100",
    "edition" : "00000100",
    "mixType" : "01",
    "quantity" : "1",
    "customerPurchaseOrderType" : "I",
    "issueNumberFrom" : "000006880",
    "paymentMethod" : "K",
    "totalPaidCurrencyCode" : "GBP",
    "totalPaidAmount" : 795.00,
    "currencyCode" : "GBP",
    "priceListType" : "01",
    "fixedPriceListAndCurrencyCode" : true,
    "externalOrderNumber" : "93-2",
    "inputOffice" : "IMM-INPUT",
    "inputDate" : "2017-04-19",
    "inputUser" : "SYS-RFC",
    "saveInSystem" : true,
    "matriculatedTo" : "2019-01-20",
    "saveInSystem" : true,
    "postAtOnce" : false,
    "dsbEPaymentGuid" : "ac5f2111-d2ff-402e-b760-5d4e67d19b6f",
    "subscriptionRenewal" : {
   "automaticRenewal" : false
    },
    "bpRelations" : [ {
          "role" : "AG",
          "bp" : {
    "salutationCode" : "01",
    "lastName1"  : "Y",
    "firstName"  : "X",
    "addressLine1" : "Blitz Media Ltd, Unit 1, Torfaen Bu",
    "zipcode" : "N1C 4AP",
    "countryCode" : "GB",
    "city" : "LONDON",
    "bpCommunicationsList" : [
   {
            "communicationType" : "T",
            "communicationValue" : "123"
        }
    ],
    "bpAttributesList" : []
}
    }],
    "orderAttributes" : [ {
    "type" : "USERNA",
    "value" : "Max Mustermann"
}]
}

URL: GET: /rest/{client}/subscriptions/attributes?type=username=Mustermann

Content site access via order attribute

  "orderAttributes" : [ {
    "type" : "USERNA",
    "value" : "Mustermann"
  } ]