{
  "manageEntity": {
    "action": "Create",
    "entityId": "856315206",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":856315206,\"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": "0xb1fe807bf1e8509cd9f43f78d43ec85a8e765aeb754633223b1aceafc7975152",
    "signature": "0x187cee8b7ca6aa06e2f9f8e1b4aa3fd7487dbf21d2af459bb4b8056dde5fb93a074451843bace86af185e1eaa5561877fe62deb5f9813b4a84a4190b40991ddd1c",
    "signer": "0x607C0B504B1190F4Fa45D4712D4449C62F7224E7",
    "userId": "870305968"
  }
}