UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bt3UZd/3EuE6GbuSyu8ut5ac1qiBmElBi22j8bRA5c0=' 
WHERE 
  key_id = '8a8ae946a6641389a4123e0178018b8efd84510892c055f3c9f026d05b20d946' 
  AND (
    token = 'bt3UZd/3EuE6GbuSyu8ut5ac1qiBmElBi22j8bRA5c0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )