{
  "manageEntity": {
    "action": "Update",
    "entityId": "444965341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb359155c591fb74fed63ee0ee34d810a4f216f0613e7ca905b063496f07c08b0",
    "signature": "0xf18dcc3dc6c448c99179e03662a82cbb1192aa367413b48f592696e187f49d6a0cee137510f5486af63555d6c57d76f597f5205fc66e165ec33a1af2405030ed1b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}