curl --request GET \
  --url https://api.embedreach.com/api/communication-groups/{id}

{
  "success": true,
  "message": "<string>",
  "data": {
    "id": "<string>",
    "emailChannelSenderId": "<string>",
    "emailHtmlBody": "<string>",
    "emailCompiledHtml": "<string>",
    "emailTextBody": "<string>",
    "emailPreviewText": "<string>",
    "emailSubject": "<string>",
    "smsChannelSenderId": "<string>",
    "smsMessageBody": "<string>",
    "textMessageCompanyName": "<string>",
    "updatedFromDefault": {
      "email_html_body": "<string>",
      "email_text_body": "<string>",
      "text_message_body": "<string>"
    },
    "textMessageMediaUrls": [
      "<string>"
    ],
    "type": "custom",
    "extraMergeFields": [
      {
        "id": "<string>",
        "type": "static",
        "templateName": "<string>",
        "displayName": "<string>",
        "staticValue": "<string>"
      }
    ]
  }
}