UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Brw2STlkKByr9njTjM8EjIDBy8QJ/zPwDoGyK4/xc0A=' 
WHERE 
  key_id = '39b37b40eb8aec0ea4244a42f0b8ba80bb8273156c20a9b0af376c6a53652d94' 
  AND (
    token = 'Brw2STlkKByr9njTjM8EjIDBy8QJ/zPwDoGyK4/xc0A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )