data.json

{
    "id": 123,
    "title": "Example data",
    "actions": {
        "confirmAddress": "/item/123/confirmAddress",
        "edit": "/item/123"
        "addComment": "/item/123/comments"
    }
}

schema.json

{
    "title": "Example schema",
    "type": "object",
    "properties": {
        "actions": {
            "title": "Actions",
            "description": "This schema defines a bunch of links.  However, the ones without appropriate URLs will be ignored.",
            "links": [
                {
                    "rel": "confirm",
                    "href": "{+confirmAddress}",
                    "method": "POST",
                    "schema": {...}
                },
                {
                    "rel": "edit",
                    "href": "{+edit}",
                    "method": "PUT",
                    "schema": {...}
                },
                {
                    "rel": "create",
                    "href": "{+addComment}",
                    "method": "POST",
                    "schema": {...}
                },
                {
                    "rel": "history",
                    "href": "{+history}",
                    "method": "GET"
                }
            ]
        }
    }
}