select * from data where sn='meteo2' and pq='ssid' order by id desc limit 4
idsntspqvaluesystemts
20699236 meteo2 ssid walley 1558457482 Tue 21 05 2019 18:51:22
20695377 meteo2 ssid walley 1558450914 Tue 21 05 2019 17:01:54
20691582 meteo2 ssid walley 1558444348 Tue 21 05 2019 15:12:28
20687740 meteo2 ssid walley 1558437780 Tue 21 05 2019 13:23:00

Tue May 21 21:30:56 2019 by walley