gistfile1.txt

            JsonConvert.DefaultSettings = () => new JsonSerializerSettings
            {
                DateParseHandling = DateParseHandling.None
            };
            var foo = JsonConvert.DeserializeObject(@"[
                                  {
                                    ""eventId"": ""fbf4a1a1-b4a3-4dfe-a01f-ec52c34e16e4"",
                                    ""eventType"": ""event-type"",
                                    ""data"": {

                                      ""BirthDate"": ""1987-11-07T00:00:00.000+01:00""
                                    }
                                  }

                                ]");
            
            Console.Write(foo);