{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "sign",
  "type": "object",
  "properties": {
    "signedTransaction": {
      "type": "string",
      "pattern": "^[A-F0-9]+$",
      "description": "The signed transaction represented as an uppercase hexadecimal string."
    },
    "id": {
      "$ref": "transactionHash",
      "description": "The [Transaction ID](#transaction-id) of the signed transaction."
    }
  },
  "required": ["signedTransaction", "id"],
  "additionalProperties": false
}