Is @JsonTypeResolver the only option for resolving using multiple properties?

I have incoming JSON data in the following format

{
    "header": {
        "schema_id": {
            "namespace": "omh",
            "name": "physical-activity",
        },
    },
    "body": {
        "activity_name": "walking",
        "distance": {
            "value": 1.5,
            "unit": "mi"
        },
    }
}

and corresponding Java classes that looks like

public class DataPoint<T extends Measure> {

    private DataPointHeader header;
    private T body;

and

@JsonNaming(LowerCaseWithUnderscoresStrategy.class)
public class PhysicalActivity extends Measure {

    private String activityName;
    private LengthUnitValue distance;

I'd like Jackson to resolve body to the PhysicalActivity type based on the schema_id in the JSON document, e.g. in pseudocode

if schema_id.namespace == 'omh' && schema_id.name == 'physical-activity'
     then return PhysicalActivity.class

I've tried doing this with @JsonTypeIdResolver but if I try to navigate to header.schema_id.name with @JsonTypeInfo, e.g.

@JsonTypeInfo(use = JsonTypeInfo.Id.CUSTOM,
        include = JsonTypeInfo.As.EXTERNAL_PROPERTY,
        property = "header.schema_id.name")
@JsonTypeIdResolver(DataPointTypeIdResolver.class)
public abstract class Measure {

I get a missing property: 'header.schema_id.name' error. And even if I could, I don't think I can take a decision on both the namespace and name properties.

Is there a sane way to do this besides building from scratch with @JsonTypeResolver?