Some things I've found about the two lines of letters:
* The first line has very different letter distribution versus the second, which makes me think a different keyword was used to encode it. The first: M (100%), I V S Z (83.3%), D W A Y Q P J F (66.6%)... The second: V (100%), S C (80%), J (60%), G O R M U I F (40%)... Even the first half of the first line seems to differ from its last half... lots of Vs to suddenly no Vs at all.
* The very uniform distribution of letters like that suggests a
Vigenère square may be part of the encoding, since normal English has bigger differences in individual letter frequency. Though if you count lines one and two as a single cipher, the distribution isn't as uniform.
* The word "fibonacci" can be repeated enough times (fibonaccifibonacci...) to equal the number of letters in both the first and second lines. It might be the keyword if a Vigenère square was used.
My thought is that they started with a simple letter substitution, then possibly put it in a Caesar square, then put that through a Vigenère square. It's definitely a few things going on at once, though. I'm thinking those letter transformations have to do with the final simple letter substitution than with the initial code.
edit: I don't think it's a Vigenère square any more. I used a few tools online and got pretty good at cracking things encrypted that way, but can't for the life of me crack this code like that. The letter frequencies just won't resemble anything normal, no matter how long I try to make the keyword. So I guess it's back to pondering what the heck those numbers and sentence are for. Maybe the second code requires something from the first anagram code to solve?