{
  "manageEntity": {
    "action": "Update",
    "entityId": "605775157",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x632d2c720bf1d05e09c4b4c48c8dfaad129098d18f27619c3fc9ad5788bbc6e3",
    "signature": "0x3ffdb05a8014643618e233b53a62358a2aadd986c9d99e7fb1c6febca33026c81823ba739d4977544e591e8b5e6fb83d0c6921cd101528f3ec9801be0c11fea31b",
    "signer": "0x28B95af038ACb6815848Db6776e96EcF8F17a27d",
    "userId": "605775157"
  }
}