curl --request POST \
  --url https://saas.pads365.com/rdx/NDS.Services.Authentication/api/v1/ExternalUserGroupMapping \
  --header 'Content-Type: application/json' \
  --data '
{
  "ExternalAuthenticationProviderId": "<string>",
  "ExternalId": "<string>",
  "RoleId": "<string>",
  "Id": "<string>"
}
'

{
  "Succeeded": true,
  "Message": "<string>",
  "Code": "<string>",
  "ExternalUserGroupMappingId": "<string>"
}