eqemu-server/obr/packets/world/MembershipDetails.txt

struct MembershipEntry
{
    u32 purchase_id;
    u32 bitwise_entry;
};

struct MembershipSetting 
{
    s8 setting_index;
    s32 setting_id;       // 0 to 23 actually seen but the OP_Membership packet has up to 32
    s32 setting_value; 
};

struct Membership
{
    u32 membership_setting_count;
    MembershipSetting membership_settings[membership_setting_count];
    u32 race_entry_count;
    MembershipEntry membership_races[race_entry_count];
    u32 class_entry_count;
    MembershipEntry membership_classes[class_entry_count];
    u32 exit_url_length;
    char exit_url[exit_url_length];
};

Membership m @ 0x00;