LocalTuya Entity for text

Trying to get my tuya doorbell working so that I can at least pull the image url when motion is detected or the doorbell is pressed (given up on video at this point) but can’t work out how to set an entity in localtuya to receive the value of the associated dp

Can anyone help me with this - only recently got started with localtuya, have managed to get my air conditioners etc set up but hitting a wall with this