Cannot send PubSub from EBS

[BarryCarlyon]

@TBC1

$url='https://api.twitch.tv/helix/extensions/pubsub/';

The URL is

https://api.twitch.tv/helix/extensions/pubsub

Not

https://api.twitch.tv/helix/extensions/pubsub/

@TBC1

$token = $jwt->encode([
'exp' => $exp,
'user_id' => $userID,
'channel_id' =>$broadcasterID,
 'role'=>'external',
 'is_linked'=>'true',
 'pubsub_perms'=>['send'=>['broadcast']]
 ]);

You don’t need 'is_linked'=>'true',

And make sure both the user_id and channel_id are strings not integers

So

$userID = '123123';

Not

$userID = 123123;