UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'LB+YiizobOZA521+PnjT1sUfZGuXJ6S360gyNJje9Gs=' 
WHERE 
  key_id = '8968e01d004be6a94aa040381941e96e15fc2c37b6e5eca1c3d1c7f560ed39c4' 
  AND (
    token = 'LB+YiizobOZA521+PnjT1sUfZGuXJ6S360gyNJje9Gs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )