Add category into a catalog programatically

How can I add a category programatically ?

In postman are examples how to add category into a catalog or how to add a subcategory.

When I am calling AddCategory I am receiving next exception:

{
    "@odata.context": "https://localhost:5000/Api/$metadata#Commands/$entity",
    "@odata.type": "#Sitecore.Commerce.EntityViews.Commands.DoActionCommand",
    "Id": "cd8621751643493f9a0a860db2e98a85",
    "ResponseCode": "Error",
    "Messages": [
        {
            "MessageDate": "2018-05-04T08:29:55.7725232Z",
            "Code": "ValidationError",
            "Text": "Action has failed due to Optimistic Concurrency failure.",
            "CommerceTermKey": "OptimisticConcurrencyFailure"
        }
    ],
    "Models": [],
    "ActionUrl": null
}

I am doing a PUT call to {{ServiceHost}}/{{ShopsApi}}/DoUxAction()

This are my headers:

Content-Type:application/json
ShopName:{{ShopName}}
ShopperId:{{ShopperId}}
Language:{{Language}}
Currency:{{Currency}}
Environment:{{Environment}}
GeoLocation:{{GeoLocation}}
CustomerId:{{CustomerId}}
Authorization:{{SitecoreIdToken}}

This is my body :

{
    "@odata.context": "http://localhost:5000/Api/$metadata#Sitecore.Commerce.EntityViews.EntityView",
    "@odata.type": "#Sitecore.Commerce.EntityViews.EntityView",
    "Name": "Details",
    "Policies": [],
    "DisplayName": "Details",
    "EntityId": "{{CatalogId}}",
    "Action": "AddCategory",
    "ItemId": "",
    "Properties": [
        {
            "Name": "Version",
            "Policies": [],
            "DisplayName": "Version",
            "Value": "2",
            "IsHidden": true,
            "OriginalType": "System.Int32",
            "IsReadOnly": true,
            "UiType": "",
            "IsRequired": true
        },
        {
            "Name": "Name",
            "Policies": [],
            "DisplayName": "Name",
            "Value": "PostmanCategory",
            "IsHidden": false,
            "OriginalType": "System.String",
            "IsReadOnly": false,
            "UiType": "",
            "IsRequired": true
        },
        {
            "Name": "DisplayName",
            "Policies": [],
            "DisplayName": "Display Name",
            "Value": "Postman Category",
            "IsHidden": false,
            "OriginalType": "System.String",
            "IsReadOnly": false,
            "UiType": "",
            "IsRequired": true
        },
        {
            "Name": "Description",
            "Policies": [],
            "DisplayName": "Description",
            "Value": "Sample category created through Postman",
            "IsHidden": false,
            "OriginalType": "System.String",
            "IsReadOnly": false,
            "UiType": "",
            "IsRequired": false
        },
        {
            "Name": "IsSearchable",
            "Policies": [],
            "DisplayName": "Is Searchable",
            "Value": "false",
            "IsHidden": false,
            "OriginalType": "System.Boolean",
            "IsReadOnly": false,
            "UiType": "",
            "IsRequired": false
        }
    ],
    "ChildViews": [],
    "DisplayRank": 500,
    "UiHint": "Flat",
    "Icon": "dashboard"
}