{
  "manageEntity": {
    "action": "Create",
    "entityId": "598758967",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":598758967,\"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": "0xffc800e70936a33d9187caa3356b2f8ec939968cd5bfebf744aa46b5f07c52bd",
    "signature": "0xfd004c598e99ef00e81e6c1e8b15dad6f862dd823bd9a12f00b33bfd49a3efbe37f86b1a768973418cae872146ef90cf9f580518e051d84b5dc7c3e88b20bf9a1c",
    "signer": "0xF4CEB80509fA8126B8a97556c920e689736F2974",
    "userId": "825993852"
  }
}