Change the values of an object. If there are some values which are not overwritten, these values will not be deleted.

curl -i -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -H "Authorization: SESSION_ TOKEN" \
  -d '{"name": "Dubstep Mix", "duration": 180}' \
  -X PUT "https://api.thethings.io/v2/classes/me/Playlists/25" -k
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