UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L5EFt8srykqby5d9XZDaFX3Y6jfPu6RSUBL7+QZcg+0=' 
WHERE 
  key_id = '994def52807371e8f6ff466c236f94cfe233dc7d8da6c0eebfc4badadf715816' 
  AND (
    token = 'L5EFt8srykqby5d9XZDaFX3Y6jfPu6RSUBL7+QZcg+0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )