curl --request POST \
  --url https://api.hubapi.com/oauth/2026-03/token \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data 'client_id=<string>' \
  --data 'client_secret=<string>' \
  --data 'code=<string>' \
  --data 'code_verifier=<string>' \
  --data 'redirect_uri=<string>' \
  --data 'refresh_token=<string>' \
  --data 'scope=<string>'

{
  "access_token": "<string>",
  "expires_in": 123,
  "refresh_token": "<string>",
  "token_type": "<string>",
  "token_use": "access_token",
  "hub_id": 123,
  "id_token": "<string>",
  "scopes": [
    "<string>"
  ],
  "user_id": 123
}