curl --request GET \
  --url https://grantex-auth-dd4mtrt2gq-uc.a.run.app/.well-known/did.json

{
  "@context": [
    "<string>"
  ],
  "id": "did:web:grantex.dev",
  "verificationMethod": [
    {
      "id": "<string>",
      "type": "<string>",
      "controller": "<string>",
      "publicKeyJwk": {}
    }
  ],
  "authentication": [
    "<string>"
  ],
  "assertionMethod": [
    "<string>"
  ],
  "service": [
    {
      "id": "<string>",
      "type": "<string>",
      "serviceEndpoint": "<string>"
    }
  ]
}