{
  "manageEntity": {
    "action": "Update",
    "entityId": "199852104",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2roevxl6pakqdl5get276zmy4ls4dxl2imyskfo277pz5gk5xd6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2048432819},{\"type\":\"playlist\",\"playlist_id\":128238682}]}}}",
    "nonce": "0x0d44afa119250df22f32d7bba4c4931d643a4faa1e6f41d754c5a71f86679223",
    "signature": "0x95e438a8e05a4df54bb1338e6e9586ccd38432d0a5460aee1936ff063a12bd75592b7bb9267147d22f536eb44e7c1e8f646e2b6193111caf26f305b8794850101b",
    "signer": "0x5bC527d9d9ce97c15d405201d6bB9757f3250Ea6",
    "userId": "199852104"
  }
}