{
  "manageEntity": {
    "action": "Update",
    "entityId": "985141533",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4626a5dc6be0096672245a43f72be3c4eade004d0a5ae810dde0809f7a7b3b40",
    "signature": "0x8f5d277590cec750181e2e64f6ab9673c807ae8382175afceb67a653c059bf1d2c5b9e8d1de426188b9c256d4d59492023c4490bb547fcccf01c872a6922ab4d1c",
    "signer": "0x162A9ee62EE8188aF5093DEa4a1cd840d7fD7B5F",
    "userId": "985141533"
  }
}