How do I create field collection of/in another field collection programmatically?

Question

How can I create field collection in another field collection using Drupal 7 Entity?

The field structure is given below;

Content type: Properties

• field_1

• field_2

• field_collection_1 (I can create this field collection with the below fields)

      - field_1

      - field_2

      - field_collection_2 (But I cannot create/edit this field)

Code which I'm using to create the field_collection_1.

$fc_item = entity_create('field_collection_item', ['field_name' => 'field_property_options_col']);
$fc_item->setHostEntity('node', $property);
$fc_wrapper = entity_metadata_wrapper('field_collection_item', $fc_item);
$fc_wrapper->field_room_name->set($roomName);

Any idea?