Business Update Logics C#

BusinessUpdate.cs

var client = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Put, "https://testapi.taxbandits.com/v1.7.3/Business/Update");
request.Headers.Add("Authorization", "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwczovL3Rlc3RvYXV0aC5leHByZXNzYXV0aC5uZXQvdjIvIiwic3ViIjoiYTQyMWE2MWUzOWUyY2U3ZSIsImF1ZCI6ImVjMTQ1MjFiMzE0ZjQ3ZGE5Nzk4MzNiNWVmOTE0NTllIiwiaWF0IjoxNzIwMDEyNjkxLCJleHAiOjE3MjAwMTYyOTF9.MCscmYtHNgFf4emMoEOeOnCJMlAy5AP0LUWkWoNivoU");
var content = new StringContent("{\r\n     \"BusinessId\": \"559fa96a-a9fd-495e-a8c1-cdf3572a2b9c\",\r\n    \"BusinessNm\": \"Snowdaze LLC\",\r\n    \"FirstNm\": null,\r\n    \"MiddleNm\": null,\r\n    \"LastNm\": null,\r\n    \"Suffix\": null,\r\n    \"PayerRef\": \"Pe1261456\",\r\n    \"TradeNm\": \"Kodak\",\r\n    \"IsEIN\": true,\r\n    \"EINorSSN\": \"003313335\",\r\n    \"Email\": \"john@sample.com\",\r\n    \"ContactNm\": \"John\",\r\n    \"Phone\": \"9876543980\",\r\n    \"PhoneExtn\": \"1234\",\r\n    \"Fax\": \"1234567890\",\r\n    \"BusinessType\": \"ESTE\",\r\n    \"SigningAuthority\": {\r\n        \"Name\": \"John\",\r\n        \"Phone\": \"1234567890\",\r\n        \"BusinessMemberType\": \"ADMINISTRATOR\"\r\n    },\r\n    \"KindOfEmployer\": \"FEDERALGOVT\",\r\n    \"KindOfPayer\": \"REGULAR941\",\r\n    \"IsBusinessTerminated\": false,\r\n    \"IsForeign\": true,\r\n    \"USAddress\": {\r\n        \"Address1\": null,\r\n        \"Address2\": null,\r\n        \"City\": null,\r\n        \"State\": null,\r\n        \"ZipCd\": null\r\n    },\r\n    \"ForeignAddress\": {\r\n        \"Address1\": \"22 St\",\r\n        \"Address2\": \"Clair Ave E\",\r\n        \"City\": \"Toronto\",\r\n        \"ProvinceOrStateNm\": \"Ontario\",\r\n        \"Country\": \"CA\",\r\n        \"PostalCd\": \"M1R 0E9\"\r\n    }\r\n}", null, "application/json");
request.Content = content;
var response = await client.SendAsync(request);
Console.WriteLine(await response.Content.ReadAsStringAsync());