The id of the primary blog associated with the user who likes or unlikes another post.
The id of the blog that gives the like or unlike is available for filtering in tumblr.source.blogid.
If user A likes or unlikes content from user B, details of A are held in the source targets and details of B are held in the destination targets.
- Filter for selected destination blog ids:
tumblr.dest.blogid in "987654321, 123456789"
Target service: Tumblr
Always exists: No