UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'XxvCEaGQ9KEwEYaez4l9UeiVI/dzqyX/5JyhBdtWKaQ=' 
WHERE 
  key_id = '620b2f93c4966b8f2065a0493d112fcdaaada3c2c1352fcefc28697fe496b59d' 
  AND (
    token = 'XxvCEaGQ9KEwEYaez4l9UeiVI/dzqyX/5JyhBdtWKaQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )