{
  "manageEntity": {
    "action": "Create",
    "entityId": "1219668067",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1219668067,\"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": "0xf7a6b73095e9b3577abfbde6b56d33dc33ff63a1b99a79c2e3506a20a0365ad3",
    "signature": "0x271968b7abd9db5f8dadb3a4f4881b7e8724a07a3228583dbf0d36fab8fa65fc7d90a9c0e7facc479e8da14dc401c8838f9a96f2d0f153cff5e8b7390d6e25111c",
    "signer": "0x18a7B3405E81900d8aF72d98D5f2C54e2C988f9b",
    "userId": "42634173"
  }
}