{
  "manageEntity": {
    "action": "Create",
    "entityId": "439241763",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":439241763,\"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": "0x9b2324bcaaf8cc90640f39fd5f53972fd690021e202285efcf28d60a8216ca5a",
    "signature": "0x56b008e73c0fc694ae2f8e5655b29ebc24f5e802e3a24e0f5f86e826642d93ba0b0315c116e8d4de996320db42cd480e1eb0cc9dab269dd5c55816e5c71c800a1c",
    "signer": "0xe30d9EF18ACc16728b76ba5E86177099D81D186a",
    "userId": "107533033"
  }
}