onboardingStatus: String. A flag indicating current status of onboarding session. Possible values:
- ID_VALIDATION_FINISHED - User finished with capturing of ID,
- POST_PROCESSING_FINISHED - ID postprocessing finished on server,
- FACE_VALIDATION_FINISHED - User finished with selfie capture,
- ONBOARDING_FINISHED - User finished onboarding process,
- MANUAL_REVIEW_APPROVED - Session that was in Needs Review state, manually approved by Executive,
- MANUAL_REVIEW_REJECTED - Session that was in Needs Review state, manually rejected by Executive,
- UNKNOWN - Unable to determine status of onboarding session - user still didn't start onboarding or user is still in the process of capturing ID.
