import json

def deep_equal(a, b):
    """
    Compare two data structures for deep equality by converting them to JSON strings.

    Parameters:
    a (any): First data structure to compare.
    b (any): Second data structure to compare.

    Returns:
    bool: True if the two data structures are equal, False otherwise.
    """
    return json.dumps(a, sort_keys=True) == json.dumps(b, sort_keys=True)

def get_changes(module_params, module_args_keys_list, current_config):
    """
    Function to get changes by comparing module parameters with current configuration.

    Args:
        module_params (dict): The parameters of the module.
        module_args_keys_list (list): List of keys to check in module parameters.
        current_config (dict): The current configuration to compare against.

    Returns:
        dict: A dictionary containing the changes.
    """
    changes = {}
    
    for key, value in module_params.items():
        if key in module_args_keys_list:
            if value is not None:
                if not deep_equal(value, current_config.get(key)):
                    changes[key] = value
    
    return changes