Need help with using Aqara Zigbee Button to switch between 2 scenes

Configuration
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Hi, I’m a newbie to HA. I want to switch between 2 scenes by using Aqara Zigbee Button using an automation. I’m trying to setup using input_select.select_next but I keep getting “Invalid config for [automation]: required key not provided” error.

Here is my configuration.yaml

input_select:
  bedroomlights:
    name: Bedroom Light Switch Select
    options:
      - on
      - off
    initial: on
    icon: mdi:lightbulb

and in automations.yaml

- alias: Bedroom Lights On
  trigger:
  - platform: state
    entity_id: input_select.bedroomlights
    to: on
  action:
  - service: scene.turn_on
    entity_id: scene.normal
    
- alias: Bedroom Lights Off
  trigger:
  - platform: state
    entity_id: input_select.bedroomlights
    to: off
  action:
  - service: scene.turn_on
    entity_id: scene.master_off

- id: '1583839323446'
  alias: Turn on Bedroom Lights
  trigger:
  - platform: device
    domain: mqtt
    device_id: 7961f2fef135a195d81e43581a1f6acc
    type: action
    subtype: single
    discovery_id: 0x00158d0006332507 action_single
  action:
  - service: input_select.select_next
    data: {}
    entity_id: input_select.bedroomlights
  mode: single

Any help would be appreciated.