Program.cs

private static string CreateAuthHeader()
        {
            var dateToSign = DateTime.UtcNow.ToString("ddd, dd MMM yyyy HH':'mm':'ss 'GMT'", new CultureInfo("en-US"));
            var stringToSign = $"{dateToSign}\n/{STORAGE_ACCOUNT_NAME}/{TABLE_NAME}";
            string signature;
            using (var hmacSha256 = new HMACSHA256(Convert.FromBase64String(STORAGE_ACCOUNT_KEY)))
            {
                var dataToHmac = Encoding.UTF8.GetBytes(stringToSign);
                signature = Convert.ToBase64String(hmacSha256.ComputeHash(dataToHmac));
            }
            var authorizationHeader = $"SharedKeyLite {STORAGE_ACCOUNT_NAME}:{signature}";
            return authorizationHeader;
        }