UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9gS6u9ov4hAr5ik3moNzF7iekcGO49/gFLzro8DGCHk=' 
WHERE 
  key_id = '0fced5ff4537998c368d7aa55141a6494dd2e81f6075571a38c8f315b0ab1265' 
  AND (
    token = '9gS6u9ov4hAr5ik3moNzF7iekcGO49/gFLzro8DGCHk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )