curl --request PUT \
  --url https://console.vast.ai/api/v0/instances/bid_price/{id}/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "client_id": "me",
  "price": 0.17
}
'

{
  "success": true
}