code: private boolean setValue(String key, String value, String personaIdentifier) {
  		SQLiteDatabase db = getWritableDatabase();
  
  		// Create a new map of values, where column names are the keys
  		ContentValues values = new ContentValues();
  		values.put(Contract.COLUMN_KEY, key);
  		values.put(Contract.COLUMN_VALUE, value);
  		values.put(Contract.COLUMN_PERSONA, personaIdentifier);
  
  		// Insert the new row, returning the primary key value of the new row
  		long newRowId;
  		String nullHack = null;
  		newRowId = db.insert(Contract.TABLE_PROFILE, nullHack, values);
  		if (newRowId <= -1) {
  			Log.e(TAG, "Failure on inserting key:" + key + " value:" + value);
  			return false;
  		}
  		return true;
  	}
docs: Insert a single profile field in the {@link Contract#TABLE_PROFILE}
  
  @param key
  @param value
  @param personaIdentifier
  @return true if the operation was successful