{
  "manageEntity": {
    "action": "Update",
    "entityId": "335878078",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraalixujblp3wokquw65crln2gqbsataectrdike2jtw2iocnic2sa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1683040392},{\"type\":\"playlist\",\"playlist_id\":1179766090},{\"type\":\"playlist\",\"playlist_id\":466484827},{\"type\":\"playlist\",\"playlist_id\":330105321},{\"type\":\"playlist\",\"playlist_id\":146094574},{\"type\":\"playlist\",\"playlist_id\":888452069},{\"type\":\"playlist\",\"playlist_id\":80385},{\"type\":\"playlist\",\"playlist_id\":1170740364},{\"type\":\"playlist\",\"playlist_id\":596330015},{\"type\":\"playlist\",\"playlist_id\":1005781711},{\"type\":\"playlist\",\"playlist_id\":1458888796}]}}}",
    "nonce": "0x4612f2655f4c7a4f3781835459d49a35eb644b47a4ce8d18a13d8588503a95ed",
    "signature": "0x5dd47125c97965df3d731b5cc3a78a9adda9c9cc009c625df81cd8ef2c172b7e54722256e1ecb6fda6cd93ca9670198c13f19e56a0a6dd3a6577ced425cd48fe1b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}