curl --request POST \
  --url https://api.example.com/v1/homes/price_signal/rate_plan/{id} \
  --header 'Content-Type: application/json' \
  --header 'x-ws-api-key: <api-key>' \
  --data '
{
  "startTime": "<string>",
  "endTime": "<string>"
}
'

{
  "ratePlanId": "<string>",
  "hourlyData": [
    {
      "startTime": "<unknown>",
      "endTime": "<unknown>",
      "price": 123
    }
  ]
}