curl --request GET \
  --url https://api.flowmod.ai/group/fetchAllGroups/{instanceName} \
  --header 'apikey: <api-key>'

{
  "status": 200,
  "error": false,
  "response": [
    {
      "id": "[email protected]",
      "subject": "My New Group",
      "size": 3,
      "owner": "[email protected]",
      "participants": [
        {
          "id": "[email protected]",
          "admin": "superadmin"
        }
      ]
    }
  ]
}