{
  "manageEntity": {
    "action": "Update",
    "entityId": "434424980",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6afe79845b9e2fe01f6aa2d13ca3f4bd6ec45fda2419e8801e4f3e5f4e8e273c",
    "signature": "0x416d9441b77905d9ec6b254bd524ffcf2085aa0259f1eb4b65ce9a8770b5ee273c2be979f2dc3b33a073b08f7425249a4766d1a7290385e395d67fec8669c6a81c",
    "signer": "0x568a7935FabeeA80010b46452664f33aEBbd9445",
    "userId": "434424980"
  }
}