Properties
attributes
attributes: Nullable<Record<string, string>>
browser_id
browser_id: string
contact_id
contact_id: Nullable<string>
created_at
created_at: number
email
email: Nullable<string>
expires_at
expires_at: number
reference_id
reference_id: Nullable<string>
session_id
session_id: string
source
source: Nullable<string>
tags
tags: Nullable<string[]>