post https://api.praemium.co.uk/public/api/accountweightings
Update the Model Weightings for a given Account
This request will update the weightings for a given account Id to those specified. The calling application must have access to the account and selected models and the weightings must total 100%,
A successful OK response contains the update account and it's new weightings.
Account Weightings
If the weightings don't total 100% the API will return a 400 error with the incorrect total.