curl --request POST \
  --url https://api.sakari.io/v1/accounts/{accountId}/checkout \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "plan": "<string>",
  "commitment": 123,
  "frequency": "<string>",
  "name": "<string>",
  "email": "<string>",
  "address": {
    "line1": "<string>",
    "line2": "<string>",
    "city": "<string>",
    "state": "<string>",
    "country": {
      "code": "<string>",
      "flag": "<string>",
      "dialing": "<string>",
      "name": "<string>",
      "aliass": [
        "<string>"
      ],
      "continent": "<string>",
      "supported": true,
      "alphaNumericSenderId": true,
      "taxTypes": [
        {
          "type": "<string>",
          "name": "<string>",
          "example": "<string>"
        }
      ]
    },
    "postalCode": "<string>"
  },
  "tax": {
    "type": "<string>",
    "id": "<string>"
  },
  "segmentUnderstanding": true
}'

{
  "success": true,
  "data": "<string>"
}