Help with alphacate

Hey all. I have been playing with stocks for something to do. I am trying to use a node node-red-contrib-alphacate (node) - Node-RED for some charting. It needs arrays (I guess) of 5 values as an input but I am having difficulty in getting it formatted corrected. the example they give is msg.payload = [
{
closePrice,
openPrice,
highPrice,
lowPrice,
volume
},

]

but does that mean I need to put names as well as in
“closePrice”: 1,“openPrice”:2 etc etc
If someone could give me an example that would be great

Ok found it. I needed to use Variables in the place and not numbers as I was doing. It was seeing the numbers as a string.