{
  "type": "object",
  "required": [
    "recipient_email",
    "amount_cents"
  ],
  "properties": {
    "amount_cents": {
      "type": "integer",
      "format": "int64"
    },
    "memo": {
      "type": [
        "string",
        "null"
      ]
    },
    "recipient_email": {
      "type": "string"
    }
  }
}