{
  "description": "Create a Variable Recurring Payment (VRP) mandate",
  "request": {
    "method": "POST",
    "url": "https://api.truelayer.com/v3/mandates",
    "headers": {
      "Authorization": "Bearer YOUR_ACCESS_TOKEN",
      "Tl-Signature": "YOUR_JWS_SIGNATURE",
      "Idempotency-Key": "660f9511-f30c-52e5-b827-557766551111",
      "Content-Type": "application/json"
    },
    "body": {
      "mandate": {
        "type": "commercial",
        "provider_selection": {
          "type": "user_selected"
        },
        "beneficiary": {
          "type": "merchant_account",
          "merchant_account_id": "e83c6b8e-5a3c-4b2d-a1f0-9c8b7d6e5f4a"
        }
      },
      "currency": "GBP",
      "user": {
        "name": "John Doe",
        "email": "john.doe@example.com"
      },
      "constraints": {
        "valid_from": "2026-05-03T00:00:00Z",
        "valid_to": "2027-05-03T00:00:00Z",
        "maximum_individual_amount": 50000,
        "periodic_limits": [
          {
            "period": "month",
            "maximum_amount": 200000
          }
        ]
      },
      "metadata": {
        "subscription_id": "SUB-789"
      }
    }
  },
  "response": {
    "status": 200,
    "body": {
      "id": "c3d4e5f6-a7b8-9012-cdef-123456789012",
      "user": {
        "id": "d4e5f6a7-b8c9-0123-defa-234567890123"
      },
      "resource_token": "eyJhbGciOiJFUzUxMiIsImtpZCI6....(15 min expiry)",
      "status": "authorization_required"
    }
  }
}