UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sMw0Y6pOa4r6Jcl+3YhDGmZN//akpTBtIiVXQapOY18=' 
WHERE 
  key_id = '8c15369a1103749265f9dc111c0243d6db611573a43cccaabe4eedb2927032b2' 
  AND (
    token = 'sMw0Y6pOa4r6Jcl+3YhDGmZN//akpTBtIiVXQapOY18=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )