UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kX8vtPBXtPciEoydm2u8TiVYn9lRm2e0IqcxPnZzstw=' 
WHERE 
  key_id = '2a781891379f026732cba8b40825e3b0a85b98c7989ae54d6e93f9e5f46d0810' 
  AND (
    token = 'kX8vtPBXtPciEoydm2u8TiVYn9lRm2e0IqcxPnZzstw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )