{
  "manageEntity": {
    "action": "Create",
    "entityId": "1256103190",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1256103190,\"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": "0xfe6599e9e9ccf3bd35b6ed67319b5a376eb3eb01d09b0df5832cbaca8dd00cd0",
    "signature": "0x6c8e9386e2195a248492690157d7003091c6d322836f991f8c84eeb0d8d2a63e54182879ee87b2659766e03da3b4e813e7162434d4c55ad0258d73083df2a2571c",
    "signer": "0xb981A69f41e611D196733940C1F1091b839838D3",
    "userId": "401333815"
  }
}