{
  "manageEntity": {
    "action": "Update",
    "entityId": "893719946",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1d825fa25c50d655ccaac99ceb5556bc58bf42aa805f185304920573b0f99975",
    "signature": "0x96dda8b8e8dc0bd02d29362d52fccaa785792eb924a6a15ee11d86b8403d22ad22bc7419c763c123ef7ce142c1a965574136efc6c1c6d863788c1d5ac1a137031b",
    "signer": "0x4423Cdb579D12e175a3085B5F6d472D70968F1d0",
    "userId": "893719946"
  }
}