C＃初始化程序中的条件赋值

Question

我具有根据令牌参数创建令牌的功能， 每次调用函数时，JwtSecurityTokenHandler tokenHandler将包含不同的参数。 我认为我写的方式还不够好。有什么建议吗？

 private string CreateUserToken(string memberId, EmailOrPhone emailOrPhone, ENeedUpdateOrFinishRegistration newOrUpdate, string value)
        {
            var newOrupdate = new Claim("actionName", "Register");
            if (newOrUpdate.Equals(ENeedUpdateOrFinishRegistration.NeedUpdate))
            {
                newOrupdate = new Claim("actionName", "Update");
            }

            JwtSecurityTokenHandler tokenHandler = new JwtSecurityTokenHandler();
            var tokenDescriptorByChoice = new SecurityTokenDescriptor();
            var key = Encoding.ASCII.GetBytes("MySecret_Nofshonit");

            switch (emailOrPhone)
            {
                case (EmailOrPhone.Email):
                    {
                        tokenDescriptorByChoice.Subject = new ClaimsIdentity(new Claim[]
                       {

                    new Claim("memberId", memberId.ToString()),
                    new Claim("creationDate", DateTime.Now.ToString("ddMMyyyy")),
                    new Claim("expiredDate", DateTime.Now.AddHours(12).ToString("ddMMyyyy")),
                    newOrupdate,
                    new Claim("value", value),
                    new Claim("fieldName", "Phone")

                    });
                        break;
                    }
                case (EmailOrPhone.Phone):
                    {

                        tokenDescriptorByChoice.Subject = new ClaimsIdentity(new Claim[]
                         {

                    new Claim("memberId", memberId.ToString()),
                    new Claim("creationDate", DateTime.Now.ToString("ddMMyyyy")),
                    new Claim("expiredDate", DateTime.Now.AddHours(48).ToString("ddMMyyyy")),
                    newOrupdate,
                    new Claim("value", value),
                    new Claim("fieldName", "Email")
                         });
                        break;
                    }
                default:
                    break;
            }

            tokenDescriptorByChoice.SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature);
            var token = tokenHandler.CreateToken(tokenDescriptorByChoice);
            var tokenString = tokenHandler.WriteToken(token);
            var encryptedTokenString = Cryptor.Encrypt(tokenString);
            return encryptedTokenString;
        }