I can't use Worldmap Panel plugin in Grafana with elasticsearch

Hello everyone!
I am researching Worldmap Panel plugin and read docs from https://grafana.com/plugins/grafana-worldmap-panel
But my map is always error.

This is Map Data Options with json from https://worldpingdemo.grafana.net/api/plugin-proxy/raintank-worldping-app/api/v2/probes/locations

image
And data I push into elasticsearch:

[ {“ip”:“192.169.7.7”,“target”: “san-francisco”, “datapoints”: [[183255.0, 1529755200]]} ]

And this is query

What’s wrong with my instruction?