[WL-137] allow for student profile downloads to query into 'meta' field in the Us...

...erProfile json blob
Small nit: the fact that we can safely index into the second element of this list is a by product of the logic on 196 that may not be obvious to readers (and future editors). It might be clearer to move this logic up into the conditional, so that it's clear that it is safe, or protect against a split operation that returns a single element list.