{
  "manageEntity": {
    "action": "Create",
    "entityId": "1145784414",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1145784414,\"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": "0xbc481ee870d64206e74ed852322592a3034a088a332c88f3a7e1ef94b6503c95",
    "signature": "0x31f3fa856f77d412f3820c474e2a81046bac5d0e4b29f4e55b51e62eaaf0a93f6febf5b827b6e43311c417949853c02280ba7639a15414dcc15d93f5e83a3cdd1b",
    "signer": "0x10cB9Ce4F77e218CD9Aa08f7571669CEAE89842F",
    "userId": "726314312"
  }
}