{
    "uid" : 1,
    "events" : [
        { "evnt_id":"e1", "campaign_id":"c1", "event_name":"e1_name", "event_time":1000000},
        { "evnt_id":"e2", "campaign_id":"c1", "event_name":"e2_name", "event_time":2000000},
        { "evnt_id":"e3", "campaign_id":"c1", "event_name":"e3_name", "event_time":3000000},
        { "evnt_id":"e4", "campaign_id":"c1", "event_name":"e4_name", "event_time":4000000},
        { "evnt_id":"e5", "campaign_id":"c2", "event_name":"e5_name", "event_time":5000000},
        { "evnt_id":"e6", "campaign_id":"c1", "event_name":"e6_name", "event_time":6000000},
        { "evnt_id":"e7", "campaign_id":"c1", "event_name":"e7_name", "event_time":7000000},
        { "evnt_id":"e8", "campaign_id":"c2", "event_name":"e8_name", "event_time":8000000},
        { "evnt_id":"e9", "campaign_id":"c2", "event_name":"e9_name", "event_time":9000000}
    ],
   "transactions" : [
        { "trans_id":"t1", "amount":100, "trans_time":7777777},
        { "trans_id":"t2", "amount":100, "trans_time":8888888}
    ]
}