Android Question format message of Message.GetData

Sub fm_MessageArrived (Message As RemoteMessage)
    Log("Message arrived")
    Log($"Message data: ID ${Message.MessageId}, Data ${Message.GetData}"$)
    Log("Message="& Message)
    Dim value As Int
    Dim map As Map :map.Initialize   
    map = CreateMap("body1":Message.GetData,"title1":Message.GetData)
    For Each key As String In map.Keys
    value = map.Get(key)
    Log("valore="+value)
    Next

 Log("valore="+value)