//No criteria,  just a normal send( what use to be broadcast )

 
{
    message: {
        alert: "...",

        sound: "...",
        badge: "...",

        "simple-push": "version=123"
    }


}
 
 
//With Criteria
 
{
    variants: [..., ...],

    deviceType: [..., ...]
    message: {
        alert: "...",

        sound: "...",
        badge: "...",

        "simple-push": "version=123"
    },


    "simple-push": {
        "someCategory": "...."

    }
}