UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N4lJpfKSQnOWt5lgFT/x8qGHfrur94P2GefEAMrZaVk=' 
WHERE 
  key_id = '81149502b4902e2d41f898395975f3c5404d3531d0f50bba792e4da2241271ea' 
  AND (
    token = 'N4lJpfKSQnOWt5lgFT/x8qGHfrur94P2GefEAMrZaVk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )