UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QPVTgZk+TOh3cXpvDmhaylOjggevjiAmDTYl4oIJeJM=' 
WHERE 
  key_id = '6c02925e3c0081cd335ffdab5364a511db07a865d5582a9f51beea4115092445' 
  AND (
    token = 'QPVTgZk+TOh3cXpvDmhaylOjggevjiAmDTYl4oIJeJM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )