curl --request PUT \
  --url https://api.soundpiece.co/adapt.separate_stems \
  --header 'Content-Type: application/json' \
  --data '
{
  "audio": {
    "asset_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  },
  "callback": {
    "url": "<string>",
    "context": {}
  }
}
'

{
  "computation": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "status": "generating",
    "asset_ids": [
      "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    ]
  }
}