curl --request GET \
  --url https://api.opal.dev/v1/event-streams \
  --header 'Authorization: Bearer <token>'

{
  "event_streams": [
    {
      "event_stream_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "connection": {
        "name": "<string>",
        "enabled": true,
        "webhook_url": "<string>",
        "credentials": {
          "api_key_credentials": [
            {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "name": "<string>",
              "value": "<string>"
            }
          ],
          "hmac_credential_1": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "secret": "<string>",
            "created_at": "2023-11-07T05:31:56Z"
          },
          "hmac_credential_2": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "secret": "<string>",
            "created_at": "2023-11-07T05:31:56Z"
          }
        }
      }
    }
  ]
}