UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6O15uZmvwXtKhmbpWwyzL5caXk9jCQVvZO4unew6Me4=' 
WHERE 
  key_id = 'c99797b5b203f0fd39f58ba3d7d53f87339eae38e22516633545d1338119831b' 
  AND (
    token = '6O15uZmvwXtKhmbpWwyzL5caXk9jCQVvZO4unew6Me4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )