shell code is wrong

[ingconti]

I did try on macOS:

MESSAGE="Message"
SECRET="secret"

echo -n $MESSAGE | openssl dgst -sha256 -hmac $SECRET -binary | base64

and even:
echo -n $MESSAGE | openssl sha256 -hmac $SECRET -binary | base64

I got:
a74X0vtyUNoaQ246L1U+xD0Q6gHlJVyCKa7OacllXeE=

and not:
qnR8UCqJggD55PohusaBNviGoOJ67HC6Btry4qXLVZc

as previous examples

[ingconti]

see correct hashes here:

https://apps.apple.com/it/app/hmac-sha256generator/id6448465719?l=en

I can give you my code.