UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PdJfC73nYm4H5BH0ynDHlch4mRsIaTjRn4gUv1HNl5E=' 
WHERE 
  key_id = '8686c900c8a3fba385a6ab5d2d5756be64d99880a68c288ea62c69e512f17679' 
  AND (
    token = 'PdJfC73nYm4H5BH0ynDHlch4mRsIaTjRn4gUv1HNl5E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )