PubSub: Bits in JS. Bits message not interpreted correctly

This is an example of a PubSub message I’m referring to:
{"type":"MESSAGE","data":{"topic":"chat_moderator_actions.xxx.xxx","message":"{\"data\":{\"type\":\"chat_channel_moderation\",\"moderation_action\":\"host\",\"args\":[\"xxx\"],\"created_by\":\"xxx\",\"msg_id\":\"\",\"target_user_id\":\"\"}}"}}

Notice how the message field is an object encoded in a string?

If you have someone reporting back errors, can’t they give you an example of a raw message from a debug output or something to verify what’s going on?