diff --git a/EnvelopeGenerator.Web/Controllers/Test/TestAnnotationController.cs b/EnvelopeGenerator.Web/Controllers/Test/TestAnnotationController.cs
index c04d0485..18515b02 100644
--- a/EnvelopeGenerator.Web/Controllers/Test/TestAnnotationController.cs
+++ b/EnvelopeGenerator.Web/Controllers/Test/TestAnnotationController.cs
@@ -9,7 +9,7 @@ namespace EnvelopeGenerator.Web.Controllers.Test;
 [ApiController]
 public class TestAnnotationController : ControllerBase
 {
-    private IMediator _mediator;
+    private readonly IMediator _mediator;
 
     public TestAnnotationController(IMediator mediator)
     {
@@ -19,12 +19,17 @@ public class TestAnnotationController : ControllerBase
     [HttpDelete("{envelopeKey}")]
     public async Task<IActionResult> Delete([FromRoute] string envelopeKey)
     {
-        var uuid = envelopeKey.GetEnvelopeUuid();
-
-        if (uuid == null)
+        if (envelopeKey.GetEnvelopeUuid() is not string uuid)
             return BadRequest();
 
-        await _mediator.Publish(new RemoveSignatureNotification(uuid));
+        if (envelopeKey.GetReceiverSignature() is not string signature)
+            return BadRequest();
+
+        await _mediator.Publish(new RemoveSignatureNotification()
+        {
+            EnvelopeUuid = uuid,
+            ReceiverSignature = signature
+        });
         return Ok();
     }
 }
\ No newline at end of file