{
  "manageEntity": {
    "action": "Update",
    "entityId": "691688428",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa24843ccb918d76d63ff65426db1000649d4dc5d8bada83afa56a0c50690d7c",
    "signature": "0x6e062944f3bc33f1561ed46f7b2728bf4cb03a57b75636bb10d70041413f0860315e0a2a2d5d048c7cb45c7427e7153b9402983ff30fed5daddbcdcd5fc927e81b",
    "signer": "0x6977C629414250C61f26e10876443Fb6A2138d35",
    "userId": "691688428"
  }
}