Hi there!
A friend of yours ($from_email$") has invited you to join the "$project_name$" project at http://aftok.com. Here's what you need to do to accept their invitation. At present, there's no user interface for the service other than bare HTTP requests with a JSON payload. A script has been provided below that you can edit to include your own information. You'll need to replace the following three tokens:
USER -- a username of your choosing
PASS -- the password you want to use for accessing the site
BTC_ADDR -- the bitcoin address that you want payouts to be initially sent to. You'll be able to change this later, but because changes of payout addresses are validated by checking transactions on the blockchain, it's important that this be a usable address that you control.
Substitute your own values for the tokens in the script below, then run it! Also, if you'd prefer that a different email address be associated with your account, change that as well.
curl -k -v -H 'Content-Type: application/json' -d '{"username":"USER", "password":"PASS", "email":"$to_email$", "btcAddr":"BTC_ADDR", "invitation_codes":["$inv_code$"]}' 'https://aftok.com/register'