UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PFVwiYyuClsmf6ZydgtSuQfObW95K9XkVs6gn3hPX0Y=' 
WHERE 
  key_id = '4976cfa3805bc6727a8470c767ce3062c042a6225444024b34d91e7360891620' 
  AND (
    token = 'PFVwiYyuClsmf6ZydgtSuQfObW95K9XkVs6gn3hPX0Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )