{
  "manageEntity": {
    "action": "Update",
    "entityId": "841833512",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierag6bbtzsz72snitlnkjtddzfvhwofeae5vbgivvlf2we76nyctfdq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1005258867}]}}}",
    "nonce": "0x7dcf1f7cdaa511912ff9fe1ba31cdab3145cb1ff8338c33854d825f76292fbc3",
    "signature": "0x49d076b6c47bc29d921b1a02a87201a227deade4764131a15d56002620adb050400956f6d9f8a9454d25a36761e0f5afed054ec7b01bba82f09f9e721038dd511b",
    "signer": "0x10F9eFF84cB30B2B7ed51c28ee2e13498e18e14E",
    "userId": "841833512"
  }
}