get price signal

{
  "startTime": "<any>",
  "endTime": "<any>",
  "data": [
    {
      "startTime": "<any>",
      "endTime": "<any>",
      "price": 123,
      "import": 123,
      "export": 123
    }
  ],
  "prices": [
    123
  ],
  "export": [
    123
  ],
  "import": [
    123
  ],
  "homeId": "<string>"
}