https://developer.spotify.com/documentation/web-api/reference/set-volume-for-users-playback
Spotify

Input
:
[1 Text]
Workflow
:
{ "workflowIdentifier": "2F0DF206-94E7-4B0B-932C-9218D668A5DD", "workflowName": "Refresh Access Token", "isSelf": false }
key
:
{ "subtitle": { "key": "deviceId" }, "title": { "key": "deviceId" }, "value": "deviceId" }

{ "volume_percent": "[Shortcut Input]", "device_id": "[3 deviceId]" }

inputType
:
dictionary
value
:
true
dictionary
:
[4 Dictionary]
name
:
state

path
:
/v1/me/player/repeat
host
:
api.spotify.com
queryItems
:
[5 Query Item]

HTTPBodyType
:
File
ShowHeaders
:
true
HTTPHeaders
:
{ "Authorization": "Bearer [2 accessToken]" }
HTTPMethod
:
PUT