curl --request GET \
  --url https://openapi.ainvest.com/open/securities/stock/financials/dividends \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "declaration_date": "<string>",
      "ex_date": "<string>",
      "pay_date": "<string>",
      "amount": 123
    }
  ],
  "status_code": 123,
  "status_msg": "<string>"
}