patch https://a.klaviyo.com/api/profiles/
Update the profile with the given profile ID.
Use the additional-fields parameter to include subscriptions and predictive analytics data in your response.
Note that setting a field to null will clear out the field, whereas not including a field in your request will leave it unchanged.
Rate limits:
Burst: 75/s
Steady: 700/m
Scopes:
profiles:write