Call Action Filter / Attribute on a single parameter in method

Question

How would one go about calling an action filter (or an attribute) on a single parameter in an action in a controller?

I have an action that accepts a string parameter that needs to be transformed before the action can continue using it (since it could arrive from the front-end both transformed OR original). I want to implement an attribute that intercepts the action, transforms the parameter, and then continues the action (similar to how the [Bind] attribute is called on specific parameters in an action).

The example action filter gets called if I call it on the whole action but I want it to be called only on specific parameters.

Example action:

public ActionResult CalculateFieldValue(string documentId, [FieldEscape]string fieldId)
{
    // Operations requiring the fieldId to be cleaned first...
}

Example action filter:

[AttributeUsage(AttributeTargets.Parameter)]
public class FieldEscapeAttribute: ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        // Replace the last occurence of "___" with ":" in the parameter value and then continue
        base.OnActionExecuting(filterContext);
    }
}