UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W8E2nMi/QaIvCjpBMpfiH6qVuTYoAVQaR3cLj0rAHjs=' 
WHERE 
  key_id = '19756986fff258cd36e7a1ebb393807c77cca159faa71b501425380138cebc55' 
  AND (
    token = 'W8E2nMi/QaIvCjpBMpfiH6qVuTYoAVQaR3cLj0rAHjs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )