UnarchiveMetadataKeys

curl -X POST "<API_URL>/api/v1/metadata-keys/unarchive" \
  -H "Authorization: Bearer <API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{
    "metadataKeys": [
      {
        "name": "string",
        "type": "METADATA_KEY_TYPE_UNSPECIFIED",
        "archivedDate": "2019-08-24T14:15:22Z"
      }
    ],
    "unarchiveValues": true
  }'