DROP PROCEDURE IF EXISTS `sign_up`;
DELIMITER ;;
        LEAVE proc;
    END IF;
        LEAVE proc;
    END IF;
    SELECT SHA2(p_password, 256) INTO @password_sha256;
    SELECT LOWER(HEX(RANDOM_BYTES(32))) INTO @confirmation_token;
    SELECT 0 AS 'status', @confirmation_token AS 'confirmation_token', 'sign_up' AS 'proc';
END ;;
DELIMITER ;
