{
  "manageEntity": {
    "action": "Update",
    "entityId": "223946715",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xea8b8bd9333ae6456d69b82fb5847644bd6ce4363f918fe490c67cfa44df64c9",
    "signature": "0xe19ff03fcaef7d564e1301d850a8a684f007a47a916d203dccce210a6b084688036d1966fb9028a2e9ed90fb5f7bcf5b4ac079b072aed5f8ef831d3b1790e3ae1c",
    "signer": "0xac9398fE3324BB093c993C791Db4a36624f5a248",
    "userId": "223946715"
  }
}