Agreed with @Ryan_Roberts_
You can also look at getOffers and only pass entity to the request that you care about:
adobe.target.getOffers({
request: {
execute: {
mboxes: [
{
index: 0,
name: "first-mbox"
},
{
index: 1,
name: "second-mbox",
parameters: {
a: 1
},
profileParameters: {
b: 2
}
}
]
}
}
});
however, it will require you updating to the latest version of Adobe Target.