UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L+3UNKlyjEY9yv0EqAmdbiHUw6sCr8htK9tIqDG8TUY=' 
WHERE 
  key_id = 'b15d5e841eb8d0881e35c911597fa534221799c20c4a96ebba3a2cadb8278c7b' 
  AND (
    token = 'L+3UNKlyjEY9yv0EqAmdbiHUw6sCr8htK9tIqDG8TUY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )