Improve logs for sending updates on the distributor side

[MaryamZi]

$title.

Currently the output is like

2020-07-24 18:22:11,709 INFO  [eclk/distributor] - Result notification received for FAKE_ELECTION/R_V/01A 
2020-07-24 18:22:11,734 INFO  [eclk/distributor] - Result data received for FAKE_ELECTION/R_V/01A 
2020-07-24 18:22:11,805 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:11,809 INFO  [eclk/distributor] - Publishing cumulative result with FAKE_ELECTION/R_VI/01A 
2020-07-24 18:22:11,869 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:21,899 INFO  [eclk/distributor] - Result notification received for FAKE_ELECTION/R_V/01B 
2020-07-24 18:22:21,908 INFO  [eclk/distributor] - Result data received for FAKE_ELECTION/R_V/01B 
2020-07-24 18:22:21,966 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:21,968 INFO  [eclk/distributor] - Publishing cumulative result with FAKE_ELECTION/R_VI/01B 
2020-07-24 18:22:22,019 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:32,069 INFO  [eclk/distributor] - Result notification received for FAKE_ELECTION/R_V/01PV 
2020-07-24 18:22:32,089 INFO  [eclk/distributor] - Result data received for FAKE_ELECTION/R_V/01PV 
2020-07-24 18:22:32,142 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:32,144 INFO  [eclk/distributor] - Publishing cumulative result with FAKE_ELECTION/R_VI/01PV 
2020-07-24 18:22:32,209 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:42,235 INFO  [eclk/distributor] - Result notification received for FAKE_ELECTION/R_V/02J 
2020-07-24 18:22:42,305 INFO  [eclk/distributor] - Result data received for FAKE_ELECTION/R_V/02J 
2020-07-24 18:22:42,359 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601 
2020-07-24 18:22:42,362 INFO  [eclk/distributor] - Publishing cumulative result with FAKE_ELECTION/R_VI/02J 
2020-07-24 18:22:42,420 INFO  [eclk/distributor] - Sending JSON data for 2816adfffe493860-000052a0-00000004-1283ac087d8bf22b-da506601