From someone else's inbox:
The paper ... has been submitted for possible publication in the Journal of XX. Since you are well-known for your expertise in this subject area I would be delighted if you were willing to advise me on this paper by writing a short report that could be shared with the authors and a confidential recommendation concerning publication.
In order to provide a timely response to authors I would like to be in receipt of your review by Sep 09, 2013. As a mark of appreciation for your work Elsevier would be pleased to send an honorarium if we receive your review by this date. The JXX policy on review rewards is as follows:
* $100/report to be paid out to referees who submit a qualitative report within 6 weeks from confirmation of assignment of submission
* $50/report to be paid out to referees who submit a qualitative report within 8 weeks from confirmation of assignment of submission
* No payment to referees for reports received later than 8 weeks
