{
  "manageEntity": {
    "action": "Create",
    "entityId": "1511534120",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1511534120,\"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": "0x319555b0ef481d631bc5e05fba98d55983b68d356b1161b281af0c5a302d6cf2",
    "signature": "0x334d82c5f52c7f51d712769646fcbe186efe83de986f74d4deea630f5f7a94bb52f9c5c15a97c2513a5e66c0472c7176c4fc54a5416720a907c22a39ad339bc31c",
    "signer": "0xce9d3CB083961774e5D1e0cf9287da5d8Abc8929",
    "userId": "564286592"
  }
}