Usually for non-compete clause, the company will include in the clause that the company shall pay the employee a % of his last drawn pay (usually 1/3 or 1/2 ) during the non-compete period should they wish to impose the non-compete clause on the employee. This is to safeguard the company too in order to make the clause more fair and therefore enforceable.

So even if you sign on the non-compete clause, it just give the company the right to impose it on you, doesn't mean that it will impose it on you. And if the company does decide to impose it on you, then they must pay you accordingly to the clause.

If the non-compete clause does not mention anything about paying you during the non-compete period should they impose it on you, then this non-compete clause is very much one-sided and therefore very much unenforceable when brought to court.