curl --location --request POST 'https://your-domain.com/stems/callback' \
--header 'Authorization: Tempo-********************************-3w' \
--header 'Content-Type: application/json; charset=utf-8' \
--data-raw '{
"stems": [
{
"item_id": "123",
"status": "succeeded",
"stems_url": "xxxxxx"
}
]
}'
