Dynamic entity title update on Lovelace floorplan

[QuAzI]

I have simple entity with icon and by hint I want to see some value. As example temperature for teapot.

   entity: water_heater.skykettle_rk_m216s
   title: {{ states('water_heater.skykettle_rk_m216s') }}
   style:
     top: 14%
     left: 82%

Currently it shows [object Object] on hover