Endpoint returns one FeedRawInput per passed-in feed ID.
The feed's identifier, as passed in.
The XML input to the action that caused the feed to be created is returned in this section as an XML file.
base64 encoded XML file that contains the request that created the feed.
E053: Invalid FeedIdList format. Must use array format [1,2]
E054: Invalid FeedIdList format. Must be array of FeedIds.
No feeds found