MerchantListModel

This object lists the merchant IDs (MIDs) and MCCs that are to be whitelisted/blacklisted. Any card
issued under this card program will work at all the merchants whitelisted and will not work at all
the merchants blacklisted.

{
    "name": "whitelist",
    "merchants": [
        {
            "mid": "1234"
        }
    ]
}