{
  "manageEntity": {
    "action": "Update",
    "entityId": "354908",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajyilsfxq7qjcubqwjjy4vlpikrxujivjj4c32fpzo7zljwspjoxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1288494577},{\"type\":\"playlist\",\"playlist_id\":1936117932},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":66758},{\"type\":\"playlist\",\"playlist_id\":139335},{\"type\":\"playlist\",\"playlist_id\":140294347},{\"type\":\"playlist\",\"playlist_id\":1428}]}}}",
    "nonce": "0x35072c9859a8a2476adbf9ccae1b25632cb2f5368a88010fc385a6fd1728e23b",
    "signature": "0xe7ebd5b25ea5fd8e202dd6d27e66dd55c357c624a7af4b5b4b64f4595dff08622ef102072bc7bb916a39d9ab41a6133d3e23342cc3951610a5784e7a76b5d6cc1c",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}