I found solution. Maybe it will be helpful for somebody.
I send message using ton-core js sdk:
const tempFilePath = './storage/saved2' // tempFile - file generated by daemon-cli
const payload = await fsPromise.readFile(tempFilePath, {encoding: 'base64'});
const payloadBase64 = Cell.fromBase64(payload)
await provider.internal(via, {
value: "0.5",
body: payloadBase64
});