They want to hire someone who has the ability to trade large amounts of bitcoins. and they have this term to be done as a proof. anyway this is a required term and they do not change it. they are active in real estate business and want to enter in crypto investing and trading and do not want to change this term. they want to a transaction of 10 BTC or less to be done as proof from a big wallet that is not for an exchange (having less than total 1000 sending transactions)
Unsure why should people help you pretend to be that well off given how rampant crypto mind game scams are... but it's unlikely you'll find someone that rich here.
I can really tell they don't know much about bitcoin/crypto since they're supposed to ask for a signed message for this.