Looks like a spinal kink to me. If it does not eat healthily and poop normally it might be a problem. It might end up being normal, If not you might want to consider a refund or exchange or something. Depending where you got it from it might be more/less difficult did you get it from a store or show or friend or something?
It is not necessarily harmful for the snake, but varies case by case from my understanding. Someone else might be able to help you better
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