{
  "id": "did:example:123",
  "verificationMethod": [
    {
      "id": "did:example:123#verkey",
      "type": "RsaVerificationKey2018",
      "controller": "did:sov:LjgpST2rjsoxYegQDRm7EL",
      "publicKeyPem": "-----BEGIN PUBLIC X..."
    }
  ],
  "authentication": ["did:example:123#verkey"]
}