UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mDk2iC2XYePW/8jEKMGHbd7IIT1D96X8a0vBiHME0/0=' 
WHERE 
  key_id = '18a97669719f92b708a0e13de58a77c989ea0310f9987e65644b0c46a44875d8' 
  AND (
    token = 'mDk2iC2XYePW/8jEKMGHbd7IIT1D96X8a0vBiHME0/0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )