private String getClientIndex(Client client) {
        return getClientIndex(client.getOrganizationId(), client.getClientId(), client.getVersion());
    }
@author Marc Savy {@literal <marc@rhymewithgravy.com>}
gateway/engine/vertx-shareddata/src/main/java/io/apiman/gateway/engine/vertx/shareddata/SharedGlobalDataRegistry.java