{
  "manageEntity": {
    "action": "Create",
    "entityId": "871116421",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":871116421,\"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": "0x8a7b363207059c65509e0b21b91cf2ba28ca0facc10074cfeb6dc9e83ebdb8be",
    "signature": "0x3a8ae187f52ff400e73c7b5277244f8169675b8c434b0d9c7b07c16c8249d3677956d9ca15b323bcdda29faeb77cc7c44248cca7b15663a1d73a4a8fcfdaa6a11c",
    "signer": "0x3D1252Aa2e83641DFAc3Db992907399361A6F464",
    "userId": "125858"
  }
}