UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8je2UVghRv10WXRwOMWn5QVLX1bcfTb+JnRXR1RAOUk=' 
WHERE 
  key_id = '6b9975c0a44905def0fa17da57f58d928ee13f989c4fa5ecd24f725d791fd020' 
  AND (
    token = '8je2UVghRv10WXRwOMWn5QVLX1bcfTb+JnRXR1RAOUk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )