Name: root-action-request
Type: request
Purpose: >
  Assign a public key to a particular identity
Response: root-action-confirmation
Inherits: message
Elements:
  Signature: { required: true }
  From: { required: true }
  Date: { required: true }
  Action: { required: true, type: string, min_length: 3, max_length: 64 }
  Script: { required: true, type: string, min_length: 1, max_length: 1024 }
Notes: >
  At the moment the only supported value for Action is "run_script" which will
  schedule the provided Script for execution during the next run.