curl --request POST \
  --url https://api.stackone.com/unified/marketing/templates/push \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'x-account-id: <x-account-id>' \
  --data '{
  "name": "<string>",
  "tags": [
    "<string>"
  ],
  "messages": [
    {
      "id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
      "remote_id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
      "name": "<string>",
      "message_type": {
        "value": "email",
        "source_value": "Email"
      },
      "message_content": {
        "title": "<string>",
        "subtitle": "<string>",
        "body": "<string>"
      }
    }
  ],
  "passthrough": {
    "other_known_names": "John Doe"
  }
}'

{
  "statusCode": 201,
  "message": "Record created successfully.",
  "timestamp": "2021-01-01T01:01:01.000Z",
  "data": {
    "id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
    "remote_id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3"
  }
}