List an edition's signature requests

{
  "items": [
    {
      "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
      "edition_id": "aeda7fca-56fe-426a-8c37-1876faaaf005",
      "created_by": "ee824cad-d7a6-4f48-87dc-e8461a9201c4",
      "signatory_name": "string",
      "signatory_title": "string",
      "signatory_email": "user@example.com",
      "signatory_user_id": "232888e2-acc5-4f86-809b-e06bf28b18e9",
      "idempotency_key": "0cd90e5a-2c03-4ab6-81a8-d48818026e58",
      "status": "pending",
      "status_reason": "string",
      "expires_at": "2019-08-24T14:15:22Z",
      "signature_id": "ed1e120f-3999-4114-b9d1-d9c58265a493",
      "created_at": "2019-08-24T14:15:22Z",
      "updated_at": "2019-08-24T14:15:22Z",
      "deleted_at": "2019-08-24T14:15:22Z"
    }
  ]
}

{
  "detail": "string",
  "instance": "../dictionary",
  "errors": [
    {
      "field": "string",
      "message": "string"
    }
  ],
  "type": "http://example.com",
  "status": 404,
  "title": "Not Found"
}

{
  "detail": "string",
  "instance": "../dictionary",
  "errors": [
    {
      "field": "string",
      "message": "string"
    }
  ],
  "type": "http://example.com",
  "status": 500,
  "title": "Internal Server Error"
}