Recommended before a Direct Post: TikTok revalidates what the creator currently
allows, and those capabilities change. Use the response to build your UI and to
pick a legal photo privacy_level for Publish to TikTok.
nickname is the account's display name.
Query parameters
accountIduuidRequired- A connected TikTok account.
profileIduuid- Optional, because accountId names its profile. If you pass both, they must agree.