Moving decryption request creation outside loop - it doesn't need to occur per iteration; just once is fine.

nucypher/characters/lawful.py

@@ -579,8 +579,6 @@ class Bob(Character):
         elif variant == FerveoVariant.SIMPLE:
             share_type = DecryptionShareSimple
 
-        decryption_request_mapping = {}
-        for ursula in cohort:
         conditions = Conditions(json.dumps(lingo))
         if context:
             context = Context(json.dumps(context))
@@ -591,6 +589,9 @@ class Bob(Character):
             conditions=conditions,
             context=context,
         )
+
+        decryption_request_mapping = {}
+        for ursula in cohort:
             decryption_request_mapping[
                 to_checksum_address(ursula.checksum_address)
             ] = bytes(decryption_request)