UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '39qN8luTfthVPztMy6w41uuEaCS+kplVT86GbGytag4=' 
WHERE 
  key_id = 'b6ba7681f5161b342ced1846220fb0d54138a4a9d17c740b9ed686835569ed09' 
  AND (
    token = '39qN8luTfthVPztMy6w41uuEaCS+kplVT86GbGytag4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )