{
  "manageEntity": {
    "action": "Create",
    "entityId": "751445907",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":751445907,\"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": "0xf597a7c10e1b081d822745cbe40a46dadd70e6bfad751bd7f74e03e1f3859f22",
    "signature": "0x130a820ac87a4c3a981c12be814a2ecfd2ce814069d2cb5fe6269a41542e5e4b547149a0d1ac296994ccac9b2d65033f460995b6d02497a4edfbe496c4b652881b",
    "signer": "0xEC8f9e062e52be860e5D799dc24dB35A72DC3852",
    "userId": "396501622"
  }
}