diff --git a/demo/activitypub.py b/demo/activitypub.py
index 85db5d9..daf8199 100644
--- a/demo/activitypub.py
+++ b/demo/activitypub.py
@@ -3,6 +3,8 @@
 import httpx
 from demo import config
 from demo.utils.key import get_pubkey_as_pem
+from demo.httpsig import auth
+from loguru import logger
 
 
 AS_CTX = "https://www.w3.org/ns/activitystreams"
@@ -63,7 +65,7 @@ def fetch(
         url: str,
 ) -> dict:
     """Fetch url and return json"""
-    print(f"fetch {url}")
+    logger.debug(f"fetch {url}")
 
     with httpx.Client() as client:
         resp = client.get(
@@ -75,3 +77,24 @@ def fetch(
         )
 
     return resp.json()
+
+
+def post(
+        url: str,
+        payload : dict,
+) -> httpx.Response :
+    logger.debug(f"send post, {payload=}")
+
+    with httpx.Client() as client:
+        resp = client.post(
+            url,
+            headers={
+                "User-Agent": config.USER_AGENT,
+                "Content-Type": config.AP_CONTENT_TYPE,
+            },
+            json=payload,
+            auth=auth,
+        )
+
+        resp.raise_for_status()
+    return resp
diff --git a/demo/httpsig.py b/demo/httpsig.py
index 65e7a29..253895d 100644
--- a/demo/httpsig.py
+++ b/demo/httpsig.py
@@ -136,7 +136,7 @@ class HTTPXSigAuth(httpx.Auth):
         else:
             sigheaders = "(request-target) user-agent host date accept"
 
-        logger.warning(request.headers)
+        logger.info(request.headers)
 
         sigdate = SignedData(
             method = request.method,
@@ -150,13 +150,14 @@ class HTTPXSigAuth(httpx.Auth):
             sigdate
         )
 
+        logger.debug(f"{to_be_signed}")
+
         if not self.key:
             raise ValueError("Should never happen")
         signer = PKCS1_v1_5.new(self.key)
         digest = SHA256.new()
         digest.update(to_be_signed.encode("utf-8"))
         sig = base64.b64encode(signer.sign(digest))
-        logger.debug(f"{sig=}")
 
 
         key_id = f"{ID}#main-key"