Yes, `field_name` (required) and `field_value` (not required, but available if field is `text_with_summary`).

I don't think we need to store the position of the comment, as this is storing the entire value of the field. I'm just replacing the value of the fields (front-end) with the whole thing. Eventually we'll need to do something more granular (for performance), but that's not really a priority right now.

Go ahead and throw `entity_bundle` in, I'm thinking it may prove useful given how flexible these comments will be (ie: turned on at the field level).