UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'l258ZTbliHC7AM6QotjZjjIlsIZPCcbKX4meUPYMIjU=' 
WHERE 
  key_id = '21c7a79b55f75fbbf1dd1bedcbc6fd7de8f082cdf535dac7ab131d9bc895dd1d' 
  AND (
    token = 'l258ZTbliHC7AM6QotjZjjIlsIZPCcbKX4meUPYMIjU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )