[DataContract]
public sealed class GetStoreHoursDataResponse : Response
{
    public GetStoreHoursDataResponse(PagedResult dayHours)
    {
        this.DayHours = dayHours;
    }

    [DataMember]
    public PagedResult DayHours { get; private set; }
}

using System.Runtime.Serialization;
using Microsoft.Dynamics.Commerce.Runtime.Messages;

[DataContract]
public sealed class GetStoreHoursDataRequest : Request
{
    public GetStoreHoursDataRequest(string storeNumber)
    {
        this.StoreNumber = storeNumber;
    }

    [DataMember]
    public string StoreNumber { get; private set; }
}