code: function fromUtf8(stringValue) {
    const str = new Buffer(stringValue, 'utf8');
  
    return `0x${padToEven(str.toString('hex')).replace(/^0+|0+$/g, '')}`;
  }
docs: Should be called to get hex representation (prefixed by 0x) of utf8 string
  
  @method fromUtf8
  @param {String} string
  @param {Number} optional padding
  @returns {String} hex representation of input string