#ads.txt sample
google.com, pub-5623774293043572, DIRECT, f08c47fec0942fa0, #Banner
google.com, pub-4080505183017902, DIRECT, f08c47fec0942fa0
rubiconproject.com,14810, DIRECT, 0bfd66d529a55807, #Banner
liveintent.com, 7561, DIRECT, #Banner
pubmatic.com, 159816, DIRECT, 5d62403b186f2ace