{
  "manageEntity": {
    "action": "Create",
    "entityId": "2121011846",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2121011846,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x2901c57d72c6acfe7adb7bf405eaff8953bd22e51c581ad40c3db9c6167f0a20",
    "signature": "0x3be6330e944b09999658b318b2f61247fe1c514e6c47373bfd452fcbe6d681906dd1988ad9d15d2884c5f05cbe3e5550fe515fd6c1b684f1b373ecde7c95e32e1c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}