code: function getPrivateProfileFromJsonBase64(privateProfileJsonBase64){
  	var privateProfileJson = Buffer(privateProfileJsonBase64, 'base64').toString('utf8');
  	console.log(privateProfileJson);
  	try{
  		var objPrivateProfile = JSON.parse(privateProfileJson);
  	}
  	catch(e){
  		return null;
  	}
  	if (!ValidationUtils.isStringOfLength(objPrivateProfile.unit, constants.HASH_LENGTH) || !ValidationUtils.isStringOfLength(objPrivateProfile.payload_hash, constants.HASH_LENGTH) || typeof objPrivateProfile.src_profile !== 'object')
  		return null;
  	return objPrivateProfile;
  }
docs: /*
  returns objPrivateProfile {
  unit: "...", // attestation unit
  payload_hash: "...", // pointer to attestation payload in this unit
  src_profile: object // attested fields
  }