curl --request POST \
  --url https://api.example.com/v1.0/message/outbound \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "From": "<string>",
  "TmidToken": "<string>",
  "Direction": "<string>",
  "Type": "<string>",
  "CampaignId": "<string>",
  "To": [
    {
      "Number": "<string>"
    }
  ],
  "Owner": "<string>",
  "Body": "<string>",
  "MessageType": "<string>",
  "MmsMedia": [
    {
      "MediaURL": "<string>"
    }
  ],
  "MmsBase64": [
    {
      "Base64": "<string>",
      "BaseType": "<string>"
    }
  ]
}
'