Signature is_canonical error
The following signature is canonical according to this https://gitlab.syncad.com/hive/hive/-/blob/master/libraries/fc/src/crypto/elliptic_common.cpp?ref_type=heads#L209
1f8b0720fed4f5ca098e782c875621cbd3669716b9ceb664289679d4134ab5a061e368c5321fb530d8186520ff2b376fcccd534ac795ba211a4303a3a67b9c3900