code: function getHexStrAddressFromPriKeyBase64String(priKeyBase64String) {
    let priKeyBytes = base64DecodeFromString(priKeyBase64String);
    let pubBytes = getPubKeyFromPriKey(priKeyBytes);
    let addressBytes = computeAddress(pubBytes);
    let addressHex = byteArray2hexStr(addressBytes);
    return addressHex;
  }
docs: return address by String, priKeyBytes is base64String