Dictionary<string,object> GetTableData( 
   string tableName,
   ColumnValuePair primaryKey
)

public class SampleApi : ForguncyApi
{
    [Post]
    public void GetDataSample()
    {
        StreamReader reader = new StreamReader(this.Context.Request.Body);
        string message = reader.ReadToEnd();
        var valuePair = JsonConvert.DeserializeObject<ColumnValuePair>(message);
            
        using (var responseWriter = new StreamWriter(this.Context.Response.Body, Encoding.UTF8))
        {
            responseWriter.Write(JsonConvert.SerializeObject(this.DataAccess.GetTableData("SampleTable1", valuePair), Formatting.Indented));
        }
    }
}