{
  "manageEntity": {
    "action": "Update",
    "entityId": "189995856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5ovbq7sexda7u72qvtfompkiilnlc24znsu74yu633p5neflskua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1716881204},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x80742f7d6913128715def86654dd0a588e953a3bfce60fa5b41ca9ee9bbbc3ff",
    "signature": "0x3f86080b9651b77cc0690b07c0e679d2e5bc9ada71dfead890dc979c77e7ba7727e48330b60bf88f8393128766a6cbdcc5da99508ac32517ae26ae31891d879f1b",
    "signer": "0x49ea1963bD0698Ba4421742478714fbFa38E0719",
    "userId": "189995856"
  }
}