Primary Owner
Name
{
    "accountNumber": "10003382",
    "entityNumber": "301",
    "main": {
        "repCode": "JC01"
    },
    "primaryOwner": {
        "firstname": "Johnny"
    }
}
Date Of Birth
info
If the birthdate needs to be updated, it's required to include the legalAddress of the individual.
{
    "accountNumber": "10003382",
    "entityNumber": "301",
    "main": {
        "repCode": "JC01"
    },
    "primaryOwner": {
        "legalAddress": {
            "country": "US",
            "street": "285 Park Avenue",
            "city": "New York",
            "stateProvince": "NY",
            "postalCode": "10022"
        },
        "birthDate": "1975-05-25"
    }
}