Document format :

{
    id: '{UUID}', // PRIMARY but useless
    game_id: '{gameID}', // SECONDARY INDEX
    tag_id: '{gameTagID in tags folder (API)}', // SECONDARY INDEX
    updated: '{timestamp}', // SECONDARY INDEX
    game_account_info: {'Object with game account infos'},
    data_settings: {'data settings object'},
    data: {'game data text'}
}

Example :

{
    id: 'f4e81a0e-f5e8-4eb3-bf95-c5203e1d87b9',
    game_id: 'speedrun',
    tag_id: 'SPEEDRUN__WR__TIME',
    updated: 1519639337231,
    game_account_info: null,
    data_settings: {
        game: 'uhh63tu'
        category: 'jkh473tf'
    },
    data: '01:01:44'
}

{
    id: 'f4e81a0e-f5e8-4eb3-bf95-c5203e1d87b9',
    game_id: 'lol',
    tag_id: 'LOL__RANKED_SOLO_SR__TIER',
    updated: 1519639337231,
    game_account_info: {
        account_id: "8fqSAx6veh0g6paaP_mMtBCaE_Ae5ijAcBE_Q6tXwp7FSA",
        puuid: "uSNpdartPQ8HIT_KhJTutWJxXzXYLgn2KQTTzDknruVZM5rz8KXmy2WePsdsuj8DhFJ-p5mpQM4z9w",
        region: "euw",
        summoner_id: "Y-ZlcXwYKQmX8Wbrb6atVYffDmdWNx5ZKGg8AtsT5Oy_7cg"
    },
    data_settings: null,
    data: 'diamond'
}

{
    id: 'f4e81a0e-f5e8-4eb3-bf95-c5203e1d87b9',
    game_id: 'speedrun',
    tag_id: 'SPEEDRUN__PB__TIME',
    updated: 1519639337231,
    game_account_info: {
        id: "zxzz459x"
    },
    data_settings: {
        game: 'uhh63tu',
        category: 'jkh473tf'
    },
    data: '04:01:44'
}