Letter from State 401k Funds Unclaimed

Do to personal issues I have had funds in an old 401k account that needed to be rolled over when the 401k no longer existed which was over 5 years ago.  I have been in contact with the MassMutual and Empower on the funds over this time and nothing was ever stated about this being reported as unclaimed to the state of AZ.  In the last few months I have finally gotten the check issued correctly as they kept sending it with wrong pay to name.  I am working to get this in to my current employers 401k, but just received a form in the mail to fill out for unclaimed property(the 401k account) 

Any help would be appreciated on what to do next, the check is still good and not stale as received in the last few months, finished finding some other paperwork needed and completing the paperwork for my companies 401k for the rollover.  I just am not sure what will happen if they try to process the check, if it takes to long will the state take it and if I fill out the form it looks like they would pay me directly instead of being able to roll it over.  

Thanks!