{
  "manageEntity": {
    "action": "Create",
    "entityId": "888457821",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":888457821,\"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": "0x0cb066a0f394ed03b4b03d368ee0d0166cb7142f1c717107d089035136032a5a",
    "signature": "0x7ead6cb7e3d8f6ef6b1b70ca240b2e5a13cca46a8304cfa6bb11cb331d38a8865d4f526a2c7fe708dfaf79d8b7123d8c180617b64a40dbceae8433ebd66cc4c21c",
    "signer": "0x75c5eB2015C32bFf8dD1Cc259EB51Eb4fF578319",
    "userId": "731780971"
  }
}