UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KMe8fWcP0u9bAB5E+VXdUGVagDiMOv9+3YzPyrFT/ME=' 
WHERE 
  key_id = '16d6b0ebc451c56ba63de5645ba7cd9ce024b1f3fcab4d4c0b84079f20e2dc1d' 
  AND (
    token = 'KMe8fWcP0u9bAB5E+VXdUGVagDiMOv9+3YzPyrFT/ME=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )