Required to publish, or to subscribe to private updates.
Claim structure to use:
{
"mercure": {
"subscribe": ["list of topic selectors, * for all, omit for public only"],
"publish": ["list of topic selectors, * for all, omit to not allow to publish"]
}
}
Create a token
(demo key:
!ChangeThisMercureHubJWTSecretKey!
)