first call CustomVariables.getCustomVariables
then get the idsubtable for the row you are interested in
then call getCustomVariablesValuesFromNameId passing &idSubtable=XX where XX is the idsubtable for the UserId row
then get the idsubtable for the row you are interested in
then call getCustomVariablesValuesFromNameId passing &idSubtable=XX where XX is the idsubtable for the UserId row