Max payload size is 100 char

[MokhammadDaniyal]

Hello! Thank you for the library!
I do have a problem with a payload size. I am trying to send 240x320 image over AWS IoT to my esp8266. However, the message does not get received by the esp8266. I have noticed that the max payload length that esp8266 displays in Serial monitor is 100.
Would you have any suggestion as to why this is happening?
AWS restriction to the size of the payload is 128kB so that is not the issue + I can see the payload on my website, so it does get published.