Use entity objects to store player data

var data = new Dictionary<string, object>()
{
    {"Health", 100},
    {"Mana", 10000}
};
var dataList = new List<SetObject>()
{
    new SetObject()
    {
        ObjectName = "PlayerData",
        DataObject = data
    },
    // A free-tier customer may store up to 3 objects on each entity
};
PlayFabDataAPI.SetObjects(new SetObjectsRequest()
{
    Entity = new EntityKey {Id = entityId, Type = entityType}, // Saved from GetEntityToken, or a specified key created from a titlePlayerId, CharacterId, etc
    Objects = dataList,
}, (setResult) => {
    Debug.Log(setResult.ProfileVersion);
}, OnPlayFabError);

var getRequest = new GetObjectsRequest {Entity = new EntityKey {Id = entityId, Type = entityType}};
PlayFabDataAPI.GetObjects(getRequest,
    result => { var objs = result.Objects; },
    OnPlayFabError
);