{
  "manageEntity": {
    "action": "Update",
    "entityId": "989829127",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramkdhcjcpwo4d4tbqyyvxxsy2dvyw6srbxbjit3qrvq6cv7tmkloq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1881511363},{\"type\":\"playlist\",\"playlist_id\":1937281965}]}}}",
    "nonce": "0xc3dbe74fb35faae207ccc4fb64bf785d29c89e8d2b182825028e2d70fa08f4d2",
    "signature": "0x1e3201351df332b9ccb1f1e695dd5d84c2832decf0d25390dd434a9bf3deb3d1741f5d593f0006ed441b420775a543222579fb3e655313ca66524081503f000c1b",
    "signer": "0x8882F63A4527D29b6CaBdEbc4F80a20f099D1Cbb",
    "userId": "989829127"
  }
}