You can use flow context to store the state. Now the output of the light state contains attributes that cannot be passed as a service call so you have to pick, also sometimes depending on the lights you cannot combine parameters (color_temp vs rgb_color, etc). This is very basic but the idea is that the call_service node accepts an input to fill all the fields payload.service, payload.domain and payload.data. So store flow.lightState the whole payload that is gonna be used to set the light back.
[{"id":"47d61b16.4bfe14","type":"inject","z":"4bad5756.743d58","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":180,"y":200,"wires":[["d1c28401.6845f8"]]},{"id":"d1c28401.6845f8","type":"api-current-state","z":"4bad5756.743d58","name":"","server":"e0d90e7a.95517","halt_if":"","halt_if_type":"str","halt_if_compare":"is","override_topic":true,"override_payload":true,"override_data":true,"entity_id":"light.dining_table","state_type":"str","outputs":1,"x":430,"y":200,"wires":[["c67b9c40.1e714"]]},{"id":"6ff82db6.68c944","type":"debug","z":"4bad5756.743d58","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","x":1050,"y":200,"wires":[]},{"id":"c67b9c40.1e714","type":"switch","z":"4bad5756.743d58","name":"","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"on","vt":"str"},{"t":"eq","v":"off","vt":"str"}],"checkall":"true","repair":false,"outputs":2,"x":650,"y":200,"wires":[["1430417e.d4fe3f"],["af1d4ce8.60667"]]},{"id":"1430417e.d4fe3f","type":"change","z":"4bad5756.743d58","name":"","rules":[{"t":"set","p":"lightState","pt":"flow","to":"{ \"service\" : \"turn_on\",\t \"data\" : { \t \"entity_id\" : $string(topic),\t \"brightness\" : $number(data.attributes.brightness),\t \"rgb_color\" : data.attributes.rgb_color\t }\t}","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":830,"y":160,"wires":[["6ff82db6.68c944"]]},{"id":"af1d4ce8.60667","type":"change","z":"4bad5756.743d58","name":"","rules":[{"t":"set","p":"lightState","pt":"flow","to":"{ \"service\" : \"turn_off\",\t \"data\" : { \t \"entity_id\" : $string(topic)\t }\t}","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":830,"y":220,"wires":[["6ff82db6.68c944"]]},{"id":"6d14209d.f12ff","type":"inject","z":"4bad5756.743d58","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":200,"y":340,"wires":[["561b95ab.7dca2c"]]},{"id":"561b95ab.7dca2c","type":"change","z":"4bad5756.743d58","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lightState","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"x":380,"y":340,"wires":[["c659f32a.951b","16a34f34.316cd1"]]},{"id":"c659f32a.951b","type":"api-call-service","z":"4bad5756.743d58","name":"","server":"e0d90e7a.95517","service_domain":"light","service":"turn_on","data":"","render_data":false,"mergecontext":"","output_location":"payload","output_location_type":"msg","x":650,"y":340,"wires":[[]]},{"id":"16a34f34.316cd1","type":"debug","z":"4bad5756.743d58","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","x":550,"y":400,"wires":[]},{"id":"e0d90e7a.95517","type":"server","z":"","name":"Home Assistant","legacy":false,"hassio":false,"rejectUnauthorizedCerts":false,"ha_boolean":"y|yes|true|on|home|open"}]
Change the entity_id of course, in the get state node.
turn on your light via ha, change brightness or color. Then press the first inject, turn off now your lamp then press the bottom inject.
