UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a94QT2/Lvw1P6tYXkwWCjcZYqCSIFfETXa6WxveLj/k=' 
WHERE 
  key_id = '16af915603e9631f6a8322479ce93060ecbdea09d934cbafddea4f356170a8d5' 
  AND (
    token = 'a94QT2/Lvw1P6tYXkwWCjcZYqCSIFfETXa6WxveLj/k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )