Approval Link construct

Approval Link construct

Hey there,
I'm using SDP 13.0 Build 13000.
After a request created, approval link sent to approver.

I need to retrieve this link in database or by calling an API.
The Key part is not saving in database and the only related thing that I've found is the:
APPROVAL_KEY column in ApprovalDetails table.
But the value is encrypted and it's like this: 
0x004F9C0281383874BDF1C828DC9CACBB02000000DE81C5A075A7AEF0C98F527E1C4630DD0A714A00260AB2AEA573E86145CA980203AF5F0621D3F7E6DB8B4C2244A7123F66745C23A3992305A1379EA68A09F2CC364F652170785850266D3BB69259549DE2753F99071BFADFD530412C680BC4717D7ADA62DBB3F2BA8351E65AB461D797
Is this key related to that key in the approval link?


By the way, I need to get this link to post it to another platform.
Please help me.
Thanks.

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