Sorry, this is the complete flow including influx out:
[{"id":"cc7221f7.8586c","type":"tab","label":"Lucht","disabled":false,"info":""},{"id":"a8e73786.bcdee8","type":"ttn uplink","z":"cc7221f7.8586c","name":"Vocht en temperatuur","app":"320ca0e6.622ee","dev_id":"humitemp-achtertuin","field":"","x":120,"y":220,"wires":[["1de25c26.2776b4","b1245fee.a95da","c382368f.517b28"]]},{"id":"1de25c26.2776b4","type":"mqtt out","z":"cc7221f7.8586c","name":"MQTT Topic Lucht","topic":"Lucht","qos":"","retain":"","broker":"b7121f19.a0272","x":490,"y":160,"wires":[]},{"id":"b1245fee.a95da","type":"influxdb out","z":"cc7221f7.8586c","influxdb":"30c360.5b7f3ca","name":"InfluxDB Lucht","measurement":"lucht","precision":"","retentionPolicy":"","x":480,"y":280,"wires":[]},{"id":"c382368f.517b28","type":"debug","z":"cc7221f7.8586c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":710,"y":220,"wires":[]},{"id":"320ca0e6.622ee","type":"ttn app","z":"","appId":"humtitemp-achtertuin","accessKey":"ttn-account-v2.Lfk6s7Xabcde7GjCCCC2DkviRu_gF3_DNPjNx9BUtv0","discovery":"discovery.thethingsnetwork.org:1900"},{"id":"b7121f19.a0292","type":"mqtt-broker","z":"","name":"IP160","broker":"192.168.2.160","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closeQos":"0","closePayload":"","willTopic":"","willQos":"0","willPayload":""},{"id":"30c360.5b7f3ca","type":"influxdb","z":"","hostname":"192.168.2.185","port":"8086","protocol":"http","database":"lucht","name":"DB Lucht","usetls":false,"tls":""}]
The debug node output (most right frame in Nodered) is what I posted.