i need help deciphering this code my friend told me it was part of a link he made

[vasmrsam]

my friend made a code he told me it was part of a link and he also told me SENTIENCE and perception but I'm not sure if it has anything to do with the code

MDYgOTMgODcgMDUgOTMgODcgMDYgMDkgODcgMDYgMDcgODcgMD UgOTMgODcgMDYgMDkgODcgMDYgMDAgODcgMDUgOTMgODcgMDYg MDcgODcgMDYgOTMgODcgMDUgOTMgODcgMDYgMDkgODcgMDYgMD ggODcgMDUgOTMgODcgMDYgMDkgODcgMDYgOTMgODcgMDUgOTMg ODcgMDYgMDcgODcgMDYgOTMgODcgMDUgOTMgODcgMDYgMDkgOD cgMDYgMDAgODcgMDUgOTMgODcgMDYgMDkgODcgMDYgMDAgODcg MDUgOTMgODcgMDYgMDcgODcgMDYgOTMgODcgMDUgOTMgODcgMD YgMDkgODcgMDYgMDcgODcgMDUgOTMgODcgMDYgMDAgODcgMDYg OTQgODcgMDUgOTMgODcgMDYgMDcgODcgMDYgOTMgODcgMDUgOT MgODcgMDYgMDkgODcgMDYgMDAgODcgMDUgOTMgODcgMDYgMDkg ODcgMDYgMDggODcgMDUgOTMgODcgMDYgMDcgODcgMDYgOTMgOD cgMDUgOTMgODcgMDYgMDkgODcgMDYgMDcgODcgMDUgOTMgODcg MDYgMDAgODcgMDYgOTQgODcgMDUgOTMgODcgMDYgMDcgODcgMD YgOTMgODcgMDUgOTMgODcgMDYgMDAgODcgMDYgOTMgODcgMDUg OTMgODcgMDYgMDkgODcgMDYgOTQgODcgMDUgOTMgODcgMDYgMD cgODcgMDYgOTMgODcgMDUgOTMgODcgMDYgMDkgODcgMDYgOTQg ODcgMDUgOTMgODcgMDYgMDkgODcgMDYgMDUgODcgMDUgOTMgOD cgMDYgMDkgODcgMDYgMDU=