{
  "manageEntity": {
    "action": "Update",
    "entityId": "548204987",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraayeyztvcvbqesqmlgwkhrojfz43issrcw6uv753slcznaovdkeca\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1206888310}]}}}",
    "nonce": "0x8203da11145181b64bfe7316c6437004ae88b1b7e9384146fcc82fe2c632a970",
    "signature": "0xfc0e6ca138c27229e1e99bb38f623b3a5ca27adc4fbb1bf53914086c440a53ec713db728cb4a164e4916cfc9b32fcc2788a8a14428cea786794f4fe09b62ea851c",
    "signer": "0x624Fc41CDbCa8CFc8D39e3B326f129086957B8Bc",
    "userId": "548204987"
  }
}