UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qSgDhONbSNBiEZnPB5GuEOwA5jcEkHd5Prj9BzFbb44=' 
WHERE 
  key_id = '50a443fef404c6851419c0c6eed80dce0e6791f638f407b6cb7c7d256a96895b' 
  AND (
    token = 'qSgDhONbSNBiEZnPB5GuEOwA5jcEkHd5Prj9BzFbb44=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )