Specflow read Json response

Need to test GET that have Json as a response. I haven't found useful info in official documentation.

Feature: API_Retrieving_Platforms
    As an authorized user...
 @mytag
Scenario: Perform Get request
    Given I am an authorized user
    When I perform GET request "/api/hotels/lists/platforms",
    Then I receive a JSON in response:
    """
    [
        {
            "refId": 1,
            "label": "Mobile"
        },
        {
            "refId": 2,
            "label": "Desktop"
        }
    ]
    """

The step for retrieving Json is:

[Then(@"I receive a JSON in response:")]
    public void ThenIReceiveAJSONInResponse(string JSON)
    {
        Assert.Equal(HttpStatusCode.OK, _responseMessage.StatusCode);
    }

How to parse this?

One way to improve this is by not putting the exact JSON in the Specflow step. I'd suggest using something like

Then I receive a response that looks like 'myResponsefile.json'

You could then create step which processes the response and looks at a file in your repo to compare it with

[Then(@"I receive a response that looks like '(.*)'")]
public void IreceiveAJsonResponse(string responsefilenametocompare)
{
        string receivedjson = GetMyReceivedjsonObject();
        string filePathAndName = "myfile.json";
        string json = File.ReadAllText(filePathAndName); 

        JToken expected = JToken.Parse(json);
        JToken actual = JToken.Parse(receivedjson);

        actual.Should().BeEquivalentTo(expected);
}