public async Task <AddSerialResponse> Handle(AddSerialRequest request, CancellationToken cancellationToken)
{
var(token, email, serial) = (cryptoService.Decrypt(request.Token),
cryptoService.Decrypt(request.Email), cryptoService.Decrypt(request.Serial));
if (await serialService.SerialExists(serial))
{
throw new DuplicateException("Serial already exists");
}
return(await accountManager.AddSerial(serial, email, token)
? (AddSerialResponse) new AddSerialResponse().LogInformation(
$"User with email {email} added serial to their account")
: throw new ChangeEmailException("Error occured during changing email"));
}