UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KxRS/urTHgeXzQkCapvZxGBSSOskqklVx+UZBpud+6w=' 
WHERE 
  key_id = '3b819511fa0590b0ebc7e890012f68d1e97a16ae0f6959cee8993e509193f0db' 
  AND (
    token = 'KxRS/urTHgeXzQkCapvZxGBSSOskqklVx+UZBpud+6w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )