docs: public boolean validateAccount(String token) throws DAOException {
              Query q = new QueryBuilder().select().from(Credentials.class).where("validation", OPERAND.EQ, token).build();
  
              TransientObject to = ObjectUtils.get1stOrNull(dao.query(q));
              if (to != null) {
                  ServerCredentials creds = new ServerCredentials(to);
                  creds.setValidation("1");
                  dao.save(creds);
                  return true;
              } else {
                  return false;
              }
  
      }