How to register to a different subscriber

[nidhhoggr]

According to the code, the subscribe method pushes an address onto the subscription stack (https://github.com/ProjectOpenSea/operator-filter-registry/blob/216e56095bee1018eeab8c528c84c59cf37a99e5/src/OperatorFilterRegistry.sol#L309). If I wanted to subscribe to a different "operator filterer" instead of the default (0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6), how would I go about doing this? From what I gathered it should be implemented something like this:

import "https://github.com/ProjectOpenSea/operator-filter-registry/blob/main/src/OperatorFilterer.sol";
import "https://github.com/ProjectOpenSea/operator-filter-registry/blob/main/src/RevokableOperatorFilterer.sol";

contract ExampleNFT is ERC721, ERC721Enumerable, RevokableOperatorFilterer {

    address public currentOperatorFiltererSubscriber = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);

    constructor() ERC721("ExampleNFT", "EXAMPLE") OperatorFilterer(currentOperatorFiltererSubscriber, true){}

    function setOperatorFiltererSubscriber(address _subscription) public onlyOwner {
        OPERATOR_FILTER_REGISTRY.unregister(address(this));
        OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), _subscription);
        currentOperatorFiltererSubscriber = _subscription;
    }

    /**
     * Overrides
     */

    function setApprovalForAll(address operator, bool approved) public override(IERC721, ERC721) onlyAllowedOperatorApproval(operator) {
        super.setApprovalForAll(operator, approved);
    }

    function approve(address operator, uint256 tokenId) public override(IERC721, ERC721) onlyAllowedOperatorApproval(operator) {
        super.approve(operator, tokenId);
    }

    function transferFrom(address from, address to, uint256 tokenId) public override(IERC721, ERC721) onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    function safeTransferFrom(address from, address to, uint256 tokenId) public override(IERC721, ERC721) onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data)
        public
        override(IERC721, ERC721)
        onlyAllowedOperator(from)
    {
        super.safeTransferFrom(from, to, tokenId, data);
    }

    function owner() public view virtual override (Ownable, RevokableOperatorFilterer) returns (address) {
        return Ownable.owner();
    }

}