Imports github.com/ardanlabs/conf/v3 github.com/ethereum/go-ethereum/crypto github.com/ethereum/go-ethereum/crypto/secp256k1 github.com/google/uuid github.com/joho/godotenv github.com/kappapay/silaclient github.com/kappapay/silaclient/domain Standard library imports crypto/ecdsa crypto/rand encoding/hex fmt log os