UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'oAHaNBKdfoW5eVMTdetyRtYfMKZadSbF01WZxEFbXvE=' 
WHERE 
  key_id = '4fc951520fc8905fd7cb5e3e64685b6ca6ab283f8b21e1a8c68a2cd97b234784' 
  AND (
    token = 'oAHaNBKdfoW5eVMTdetyRtYfMKZadSbF01WZxEFbXvE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )