UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'w33B9MVC1XhDlfTPNMqY0s2davTiNpemSLqTfs3mC1E=' 
WHERE 
  key_id = '941a66f697f8be2b266aa31fd739e278815285c450353d98d58c3b1d197de88b' 
  AND (
    token = 'w33B9MVC1XhDlfTPNMqY0s2davTiNpemSLqTfs3mC1E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )