curl --request POST \
  --url http://localhost:8080/miniapp/subscription/autopay \
  --header 'Content-Type: application/json' \
  --data '
{
  "initData": "<string>",
  "subscriptionId": 123,
  "enabled": true,
  "daysBefore": 123
}
'

{
  "success": true,
  "subscriptionId": 123,
  "autopay_enabled": false,
  "autopay_days_before": 123,
  "autopay_days_options": [
    123
  ],
  "autopay": {
    "enabled": false,
    "autopay_enabled": true,
    "autopay_enabled_at": "2023-11-07T05:31:56Z",
    "days_before": 123,
    "autopay_days_before": 123,
    "default_days_before": 123,
    "autopay_days_options": [
      123
    ],
    "days_options": [
      123
    ],
    "options": [
      123
    ]
  },
  "autopay_settings": {
    "enabled": false,
    "autopay_enabled": true,
    "autopay_enabled_at": "2023-11-07T05:31:56Z",
    "days_before": 123,
    "autopay_days_before": 123,
    "default_days_before": 123,
    "autopay_days_options": [
      123
    ],
    "days_options": [
      123
    ],
    "options": [
      123
    ]
  }
}