UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U6ROF+VlnilkgE5NqsR1lh5YHE5YOkLIVL8yQbIquEI=' 
WHERE 
  key_id = '18e1b9412bedce0a5e62f32ed94aa8d349fbb79d0b35ce6e3fa5c640c008f739' 
  AND (
    token = 'U6ROF+VlnilkgE5NqsR1lh5YHE5YOkLIVL8yQbIquEI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )