WordPress - location of users role in table?

Hi,
I am trying to work out where a users role is kept in a WordPress database,
Basically I want to setup a role of "Subscriber" as a default instead on None, but can't see it in any of the tables?

Thanks in advance.


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CREATE TABLE IF NOT EXISTS `wp_users` (
  `ID` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `user_login` varchar(60) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  `user_pass` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  `user_nicename` varchar(50) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  `user_email` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  `user_url` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  `user_registered` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `user_activation_key` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  `user_status` int(11) NOT NULL DEFAULT '0',
  `display_name` varchar(250) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
  PRIMARY KEY (`ID`),
  KEY `user_login_key` (`user_login`),
  KEY `user_nicename` (`user_nicename`),
  KEY `user_email` (`user_email`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci AUTO_INCREMENT=95 ;

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