{
  "jsonrpc": "2.0",
  "method": "call",
  "params": {
    "args": [
      [],
      {
        "composition_mode": "comment",
        "model": "purchase.order",
        "res_id": 16,
        "parent_id": false,
        "email_from": "Mitchell Admin <admin@yourcompany.example.com>",
        "subject": "Re: P00016",
        "body": "",
        "template_id": 46,
        "is_log": false,
        "mail_server_id": false,
        "active_domain": false,
        "use_active_domain": false,
        "partner_ids": [
          [
            6,
            false,
            []
          ]
        ],
        "notify": false,
        "campaign_id": false,
        "mass_mailing_name": false,
        "no_auto_thread": false,
        "reply_to": false,
        "attachment_ids": [
          [
            6,
            false,
            []
          ]
        ]
      },
      [
        "composition_mode",
        "model",
        "res_id",
        "is_log",
        "parent_id",
        "mail_server_id",
        "active_domain",
        "use_active_domain",
        "email_from",
        "partner_ids",
        "subject",
        "notify",
        "campaign_id",
        "mass_mailing_name",
        "no_auto_thread",
        "reply_to",
        "body",
        "attachment_ids",
        "template_id"
      ],
      {
        "composition_mode": "",
        "model": "",
        "res_id": "",
        "is_log": "",
        "parent_id": "",
        "mail_server_id": "",
        "active_domain": "",
        "use_active_domain": "",
        "email_from": "",
        "partner_ids": "",
        "subject": "",
        "notify": "",
        "campaign_id": "",
        "mass_mailing_name": "",
        "no_auto_thread": "",
        "reply_to": "",
        "body": "",
        "attachment_ids": "",
        "template_id": "1"
      }
    ],
    "model": "mail.compose.message",
    "method": "onchange",
    "kwargs": {
      "context": {
        "lang": "en_US",
        "tz": "Europe/Brussels",
        "uid": 2,
        "allowed_company_ids": [
          1
        ],
        "active_model": "purchase.requisition",
        "send_rfq": true,
        "active_id": 2,
        "active_ids": [
          2
        ],
        "default_requisition_id": 2,
        "default_user_id": false,
        "default_model": "purchase.order",
        "default_res_id": 16,
        "default_use_template": true,
        "default_template_id": 46,
        "default_composition_mode": "comment",
        "custom_layout": "mail.mail_notification_paynow",
        "force_email": true,
        "mark_rfq_as_sent": true,
        "model_description": "Request for Quotation"
      }
    }
  },
  "id": 997312105
}