UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9Dxudu4zie2c72V5Ph8maYtsKdvdXCw6QhFhjz+o9+o=' 
WHERE 
  key_id = '5c6df90ce6406fd8731d8fac8be4b843fc48bc3cc6b3ee5b917889cace9aaaa3' 
  AND (
    token = '9Dxudu4zie2c72V5Ph8maYtsKdvdXCw6QhFhjz+o9+o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )