mutation UpdatePaymentPlan($input: UpdatePaymentPlanInput!) {
  updatePaymentPlan(input: $input) {
    clientMutationId
    errors
    paymentPlan {
      approvalEnabled
      benefits
      createdAt
      description
      external
      id
    }
  }
}

{
  "input": {
    "id": "id"
  }
}

{
  "data": {
    "updatePaymentPlan": {
      "clientMutationId": "string",
      "errors": [
        "string"
      ],
      "paymentPlan": {
        "approvalEnabled": true,
        "benefits": [
          "string"
        ],
        "createdAt": "value",
        "description": "string",
        "external": true,
        "id": "id"
      }
    }
  }
}