`task` enum('sign','revoke') NOT NULL,
`state` enum('open', 'done', 'error') NOT NULL DEFAULT 'open',
`warning` int(2) NOT NULL DEFAULT '0',
`task` enum('sign','revoke') NOT NULL,
`state` enum('open', 'done', 'error') NOT NULL DEFAULT 'open',
`warning` int(2) NOT NULL DEFAULT '0',