Name: badge-report-request
Type: request
Purpose: >
  Get report of badges
Response: badge-zip-report
Inherits: message
Elements:
  Signature: { required: true }
  From: { required: true }
  Event-Id: { required: true, type: identifier, class: event }
  Attribute: { required: true, type: string, min_length: 1, max_length: 64 }
  Pattern: { type: string, min_length: 3, max_length: 64 }
  Categories: { type: list, item_type: string, item_min_length: 1, item_max_length: 64 }
Rejection-Codes:
  22: Event does not exist
  31: Sender is not authorized to request zip reports