When someone is paid to speak on behalf of another it is not the speech of the individual rather the speech of another.

We need a law that requires any one hiring others to speak on their behalf to register the count, purpose, and pay for those who speaks on behalf of them and to register those hired as an agents of the company that hired them.

Additionally any foreign individual who is paid to speak on behalf of a entity should be held to strict content standards and enforced by treaty law to prevent negative, harassing, destructive, divisive, or political speech by those foreign agents speaking on behalf of an entity.

The net effect would be an audit trail of those paid to disparage, distract, and discredit online gatherings. It would make a political and financial cost to foreign nations who wage information war against the US public.