Very informative variables in nested loop

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if user, ok := db.User[userId]; ok {
    for _, cardId := range user.CardIds {
        if card, okk := db.Card[cardId]; okk {
            if notif, okkk := db.Notif[card.NotifId]; okkk {
                card_notifs = append(card_notifs, CardNotif{card.Id, card, notif})
            }
        }
    }     
    c.JSON(http.StatusOK, card_notifs)
} else {  
    c.String(http.StatusNotFound, "")
}