curl --request POST \
  --url https://console.vast.ai/api/v0/network_volumes/unlist/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "id": 123
}'

{
  "success": true,
  "id": 6,
  "msg": "Deleted network volume listing"
}