Node-red set temperature on Hive heating thermostat

Hi all I’m trying to set my heating thermostat with node-red , I can get the info out of it , but I cant workout how set the temp. I have created a script that works, could some one please Node-redify it for me

alias: heating
sequence:
  - service: climate.set_temperature
    data:
      temperature: 21
    target:
      device_id: 842f6d95554c5c62e50c3c06a6f537be
mode: single

Thanks I did everything apart from the quotes are 21