Defining "any" type of column as range in custom entity

Forge
1

I am using https://developer.atlassian.com/platform/forge/storage-reference/storage-api-custom-entities/

I have defined a custom entity with attribute name as “labels” with type as “any”.
This attribute stores an array of string. Now i want to search all entities with labels containing “security”. For this i am creating an index

          - name: by-spacekey-labels
            partition: 
              - spaceKey
            range:
              - labels

This gives error while deploying app

Error: Manifest validation failed: Failed to validate custom entities (requestId: 62bad3716cf241c8a34352edec0c3774)

Error: Manifest validation failed: Failed to validate custom entities (requestId: 62bad3716cf241c8a34352edec0c3774)

I also tried creating below index

          - name: by-spacekey
            partition: 
              - spaceKey
            range:
              - spaceKey

and then used

.andFilter("labels", FilterConditions.contains('security'))

it also gives error

ERROR   14:19:07.002  adae4469-abac-4dd7-9a44-55eb95a6b495  APIError: Invalid type for operator "CONTAINS" on property "labels"

What is correct way to store array as attribute and filtering or searching based on array content?