Convert Base64 image to UIImage iOS

I am trying to convert a Base64 image to an UIImage in Objective C.

I am doing something like so :-

(UIImage *)decodeBase64ToImage:(NSString *)strEncodeData {
  NSData *data = [[NSData alloc]initWithBase64EncodedString:strEncodeData options:NSDataBase64DecodingIgnoreUnknownCharacters];
  return [UIImage imageWithData:data];
}

But this function always returns nil.

My Base64 string is like so :-

https://pastebin.com/pwbvhN0G

I verified the validity of the image using https://codebeautify.org/base64-to-image-converter# and it displayed fine.

EDIT P.S I also include the data:image/png;base64 in the string.

Is there a way I can fix this? Any help is appreciated.