UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PcVwNugKvzGk3yORf3BjvxIkSa1PvFToB8N8/AljBwo=' 
WHERE 
  key_id = '557a610ab13044a8aa2e73b95e8fab4733180714f908ee781706516d39fde593' 
  AND (
    token = 'PcVwNugKvzGk3yORf3BjvxIkSa1PvFToB8N8/AljBwo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )