UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MrhXW+0Ra95zBzOs9jCwYcq8BU/QXQRiY7XlKTi2t0k=' 
WHERE 
  key_id = '7696de47de5ca23c32fae82e4a906287c2e8395889bd9d049879a61f5485948c' 
  AND (
    token = 'MrhXW+0Ra95zBzOs9jCwYcq8BU/QXQRiY7XlKTi2t0k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )