Update a subscription

{
  "name": "Subscription_External",
  "external_customer_id": "5eb02857-a71e-4ea2-bcf9-1753840218",
  "external_id": "Subscription_External_1",
  "plan_code": "Plan-Code-1753840215",
  "billing_time": "ANNIVERSARY",
  "status": "ACTIVE",
  "plan_overrides": {
    "amount": {
      "value": 20,
      "currency_code": "USD"
    },
    "name": "Plan-Name-_1753840215",
    "trial_period": 14,
    "charges": [
      {
        "id": "99fa7a6b-d005-43a5-8bab-0df7a2a721fb",
        "metric_id": "d0682999-67a0-418e-b29b-3757426db01f",
        "charge_model": "STANDARD",
        "properties": {
          "amount": "100.15"
        },
        "min_amount": {
          "value": 200,
          "currency_code": "USD"
        }
      }
    ]
  },
  "start_date": "2025-07-30T01:54:40Z",
  "end_date": "2025-09-09T04:26:24Z",
  "current_period_start": "2025-07-30T01:54:40Z",
  "current_period_end": "2025-08-05T23:59:59Z",
  "id": "b71befc2-4799-402c-9d13-ca1f72759c64"
}

{
  "name": "INVALID_REQUEST",
  "message": "Request is not well-formed, syntactically incorrect, or violates schema.",
  "debug_id": "dc99e3955cdd8",
  "details": [
    {
      "field": "/email",
      "value": "abc",
      "location": "body",
      "issue": "INVALID_PARAMETER_VALUE",
      "description": "The value of a field does not conform to the expected format."
    }
  ]
}

{
  "name": "NOT_AUTHORIZED",
  "message": "Authorization failed due to insufficient permissions.",
  "debug_id": "565f78f101498",
  "details": [
    {
      "issue": "PERMISSION_DENIED",
      "description": "You do not have permission to access or perform operations on this resource."
    }
  ]
}

{
  "name": "string",
  "debug_id": "string",
  "message": "string",
  "details": [
    {
      "field": "string",
      "value": "string",
      "location": "string",
      "issue": "string",
      "description": "string"
    }
  ]
}

{
  "name": "INTERNAL_SERVER_ERROR",
  "message": "An internal server error has occurred.",
  "debug_id": "90957fca61718"
}