boskos/common/common.go
func (ud *UserData) FromMap(m UserDataMap) {
	for key, value := range m {
		ud.Store(key, value)
	}
}
func (ud *UserData) FromMap(m UserDataMap) {
	for key, value := range m {
		ud.Store(key, value)
	}
}
// FromMap feels updates user data from a map