GET http://streaming-groups-api/stats

{
    "groups":  [
        "lt_A": {
            "limit": 50,
            "sticked": 25,
        },
        "lt_B": {
            "limit": 50,
            "sticked": 25,
        },
        "by_A": {
            "limit": 10,
            "sticked": 25,
        },
    ],
    "countries": [
        "lt": {
            "limit": 100,
            "sticked": 50,
        },
        "by": {
            "limit": 10,
            "sticked": 30,
        },
    ]
}