message: toString changed to toFixed
diff: @@ -158,7 +158,7 @@ export class TransferBuilder {
  const serializedArgs = Buffer.from(splitBytecode[1], 'hex');
  const decoded = EthereumAbi.rawDecode(['address', 'uint', 'bytes', 'uint', 'uint', 'bytes'], serializedArgs);
  this._toAddress = ethUtil.bufferToHex(decoded[0]);
  - this._amount = new BigNumber(ethUtil.bufferToHex(decoded[1])).toString();
  + this._amount = new BigNumber(ethUtil.bufferToHex(decoded[1])).toFixed();
  this._data = ethUtil.bufferToHex(decoded[2]);
  this._expirationTime = ethUtil.bufferToInt(decoded[3]);
  this._sequenceId = ethUtil.bufferToInt(decoded[4]);
  