Setting the expiryDate when issuing credential via REST v1/credentials/issue

[wistefan]

When I try to issue a credential via the Rest-API, I always get a

{
    "details": [],
    "status": 500,
    "title": "Unable to instantiate ProofConfig:argument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\n\n    Parameter expirationDate: expected java.time.Instant? but received java.lang.String (value: 2020-11-03T00:00:00Z)\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\nargument type mismatch\n",
    "type": null
}

when I include an expiry date. What is the expected format? I tried to use:
"2020-11-03T00:00:00Z"
"2020-11-03T00:00:00.000Z"
1645009017

But nothing works.

[github-actions]

This issue has been marked as stale.

[mikeplotean]

expected format is: timestamp in seconds.