Previews the policy from IPFS without loading it into the local DB

{
  "module": {
    "id": "000000000000000000000001",
    "uuid": "00000000-0000-0000-0000-000000000000",
    "name": "Policy name",
    "description": "Description",
    "topicDescription": "Description",
    "policyTag": "Tag",
    "status": "DRAFT",
    "creator": "#did:hedera:testnet:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA_0.0.0000001",
    "owner": "#did:hedera:testnet:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA_0.0.0000001",
    "topicId": "0.0.1",
    "messageId": "0000000000.000000001",
    "codeVersion": "1.0.0",
    "createDate": "1900-01-01T00:00:00.000Z",
    "version": "1.0.0",
    "config": {
      "ANY_ADDITIONAL_PROPERTY": "anything"
    },
    "userRole": "Installer",
    "userRoles": [
      "Installer"
    ],
    "userGroup": {
      "uuid": "00000000-0000-0000-0000-000000000000",
      "role": "Installer",
      "groupLabel": "Label",
      "groupName": "Name",
      "active": true
    },
    "userGroups": [
      {
        "uuid": "00000000-0000-0000-0000-000000000000",
        "role": "Installer",
        "groupLabel": "Label",
        "groupName": "Name",
        "active": true
      }
    ],
    "policyRoles": [
      "Registrant"
    ],
    "policyNavigation": [
      {
        "role": "Registrant",
        "steps": [
          {
            "block": "Block tag",
            "level": 1,
            "name": "Step name"
          }
        ]
      }
    ],
    "policyTopics": [
      {
        "name": "Project",
        "description": "Project",
        "memoObj": "topic",
        "static": false,
        "type": "any"
      }
    ],
    "policyTokens": [
      {
        "tokenName": "Token name",
        "tokenSymbol": "Token symbol",
        "tokenType": "non-fungible",
        "decimals": "",
        "changeSupply": true,
        "enableAdmin": true,
        "enableFreeze": true,
        "enableKYC": true,
        "enableWipe": true,
        "templateTokenTag": "token_template_0"
      }
    ],
    "policyGroups": [
      {
        "name": "Group name",
        "creator": "Registrant",
        "groupAccessType": "Private",
        "groupRelationshipType": "Multiple",
        "members": [
          "Registrant"
        ]
      }
    ],
    "categories": [
      "text"
    ],
    "projectSchema": "00000000-0000-0000-0000-000000000000",
    "tests": [
      {
        "id": "000000000000000000000001",
        "uuid": "00000000-0000-0000-0000-000000000000",
        "name": "Test Name",
        "policyId": "000000000000000000000001",
        "owner": "#did:hedera:testnet:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA_0.0.0000001",
        "status": "New",
        "date": "1900-01-01T00:00:00.000Z",
        "duration": 0,
        "progress": 0,
        "resultId": "00000000-0000-0000-0000-000000000000",
        "result": "text"
      }
    ]
  },
  "messageId": "0000000000.000000001",
  "schemas": [
    []
  ],
  "tags": [
    []
  ],
  "moduleTopicId": "0.0.1"
}

POST /api/v1/external-policies/preview HTTP/1.1
Host: 
Authorization: Bearer YOUR_SECRET_TOKEN
Content-Type: application/json
Accept: */*
Content-Length: 70

{
  "messageId": "text",
  "metadata": {
    "ANY_ADDITIONAL_PROPERTY": "anything"
  }
}