POST api/ShoppingCart/ModifyCartNew

{
  "id": "sample string 1",
  "cartRef": "sample string 2",
  "pId": "sample string 3",
  "mod": "sample string 4",
  "qty": 5,
  "scId": "sample string 6",
  "cId": "sample string 7",
  "IsPair": true,
  "regionID": "07841749-33df-494b-8792-7a8dd14079de",
  "StoreCode": "sample string 10",
  "buyFromPage": "sample string 11",
  "Origin": "sample string 12",
  "ListStoreEncrypt": "sample string 13",
  "Note": "sample string 14",
  "GroupID": "sample string 15",
  "SpecialRequest": {
    "$id": "2",
    "sample string 1": [
      {
        "$id": "3",
        "ID": "499e47b6-7752-43a9-ba8c-44895007f5a9",
        "PLUProduct": "sample string 2",
        "PLUMaterial": "sample string 3",
        "Description": "sample string 4",
        "Singkatan": "sample string 5",
        "ValueSR": 6.0,
        "Satuan": "sample string 7"
      },
      {
        "$ref": "3"
      },
      {
        "$ref": "3"
      }
    ],
    "sample string 2": [
      {
        "$ref": "3"
      },
      {
        "$ref": "3"
      },
      {
        "$ref": "3"
      }
    ],
    "sample string 3": [
      {
        "$ref": "3"
      },
      {
        "$ref": "3"
      },
      {
        "$ref": "3"
      }
    ]
  },
  "Additional": {
    "$id": "4",
    "sample string 1": [
      {
        "$id": "5",
        "ID": "9074c45a-b4ea-40be-9330-9208ca9a2615",
        "PLUProduct": "sample string 2",
        "PLUAdditional": "sample string 3",
        "PLUMaterial": "sample string 4",
        "PLUSubstitution": "sample string 5",
        "Description": "sample string 6",
        "HargaWebsite": 1.0,
        "ValueItem": 7.0,
        "Satuan": "sample string 8"
      },
      {
        "$ref": "5"
      },
      {
        "$ref": "5"
      }
    ],
    "sample string 2": [
      {
        "$ref": "5"
      },
      {
        "$ref": "5"
      },
      {
        "$ref": "5"
      }
    ],
    "sample string 3": [
      {
        "$ref": "5"
      },
      {
        "$ref": "5"
      },
      {
        "$ref": "5"
      }
    ]
  },
  "specialRequestJSON": "sample string 16",
  "additionalJSON": "sample string 17",
  "StoreMerchantID": "sample string 18",
  "StoreSpecified": "sample string 19",
  "IsCheckedShopcartType": true,
  "IsCheckout": true
}