{
  "manageEntity": {
    "action": "Create",
    "entityId": "776890495",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":776890495,\"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": "0x4585895cedda95fe7d5ecc8d9ffda228dafcfbe628f78baa9ff96e40e423bab5",
    "signature": "0xec9105d20bda40e82a547e8a2dea6f82ab1eebf696d7f20a3d43346cc11798a17d7b91c5d57af0696c199f0b04a48d3d35e6bd9a17da249056cb9fbed96f48391b",
    "signer": "0x333421Ea1dE84Dfe37e039b099f2f2B3Fd1f6D94",
    "userId": "664347530"
  }
}