Need help with api call formatting

I have this api
https://finviz.com/api/map_perf.ashx

I want to format the data to get a symbol and a number for each response. So it can format in the bubble api connector

it returns

{
“nodes”: {
“CF”: -2.403,
“CTVA”: -0.676,
“FMC”: 1.316,
“MOS”: -0.366,
“MLM”: 2.021,
“VMC”: 1.074,
“DOW”: 0.474,
},
“additional”: {},
“subtype”: “d1”,
“version”: 6
}

I want the symbols to be one thing for a pair and the second is performance which is next to it.