{
  "manageEntity": {
    "action": "Update",
    "entityId": "537952097",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf62151924e0957fb7e8850545ae56ba1e1285c4bbf9db8b8ece7e98b9faa4910",
    "signature": "0xa98341d628dae56cd7b33e09128cc701796bd74242a91dfe5078848e089a251f396cda86c02b5cc1bcffdd06b4f8104fb50214500f3e281562a04d18914bb9591c",
    "signer": "0xdbe44e0A42902255f65F64BD2C40FCfaa5910825",
    "userId": "537952097"
  }
}