I need help with the email that I just received from recovery Team

-----BEGIN BITCOIN SIGNED MESSAGE-----
My account <account> has been hacked/lost. Please reset the email to <email>. The current date is <date>.
-----BEGIN SIGNATURE-----
<insert address here>
<insert signature here>
-----END BITCOIN SIGNED MESSAGE-----

I don't understand this part:

<insert address here> - ok this is my BTC address (I assume the one i have registered and sent the message which is

1B2Afp9GBjTqrR3fb9M8vV8N2qdzVG4DN8

but what shall I put here?

<insert signature here> - what for signature?

signature I will get after I click send?



if yes then how to do it? shall I send the message twice and then use the signature by second attempt