UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SrwXb2D5ufYdnv1DjgQhoZiBOL0G5lTN1C84x+f6Zsc=' 
WHERE 
  key_id = '50e279657ab7595885451d023879b5b2d98b13092606a7f341af8795981596c2' 
  AND (
    token = 'SrwXb2D5ufYdnv1DjgQhoZiBOL0G5lTN1C84x+f6Zsc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )