curl --request POST \
  --url https://api.portalhq.io/api/v3/clients/me/integrations/yield-xyz/yields/balances \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "queries": [
    {
      "address": "<string>",
      "network": "<string>",
      "yieldId": "<string>"
    }
  ]
}
'

{
  "data": {
    "rawResponse": {
      "items": [
        {
          "yieldId": "<string>",
          "balances": [
            {}
          ]
        }
      ],
      "errors": [
        {
          "yieldId": "<string>",
          "error": "<string>"
        }
      ]
    }
  }
}