UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ost1fAyBy+1868QUqsOCHng6SgzqS4skulxaznW9Kak=' 
WHERE 
  key_id = '5520bc7086ac3b523946595eeb62c04201afc61ae4dc8635eaca2a2ecb863bb5' 
  AND (
    token = 'Ost1fAyBy+1868QUqsOCHng6SgzqS4skulxaznW9Kak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )