UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3kQkQQaXsEOE+RokAFx4aLo8T12ais2+T2AZ0juAQ7s=' 
WHERE 
  key_id = 'a95a4fc3eeef2aaf3813ce1dd2b88d3f8f9e1c75cf9dcccf9c46510d0b66db4f' 
  AND (
    token = '3kQkQQaXsEOE+RokAFx4aLo8T12ais2+T2AZ0juAQ7s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )