@type t() :: %GameServer.Payments.Entitlement{
  __meta__: term(),
  expires_at: term(),
  id: term(),
  inserted_at: term(),
  key: term(),
  metadata: term(),
  product: term(),
  product_id: term(),
  revoked_at: term(),
  source_purchase: term(),
  source_purchase_id: term(),
  starts_at: term(),
  status: term(),
  updated_at: term(),
  user: term(),
  user_id: term()
}