curl --request POST \
  --url https://api.ctrl-hub.com/v3/orgs/{org_id}/customers/accounts \
  --header 'Content-Type: application/vnd.api+json' \
  --header 'X-Session-Token: <api-key>' \
  --data '
{
  "data": {
    "type": "<string>",
    "relationships": {
      "contacts": {
        "data": [
          {
            "type": "<string>",
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
          }
        ]
      },
      "properties": {
        "data": [
          {
            "type": "<string>",
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
          }
        ]
      }
    }
  }
}
'

{
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "type": "<string>",
    "meta": {
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "modified_at": "2023-11-07T05:31:56Z"
    },
    "relationships": {
      "author": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "<string>"
        }
      },
      "organisation": {
        "data": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "type": "<string>"
        }
      },
      "contacts": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "<string>"
          }
        ]
      },
      "interactions": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "<string>"
          }
        ]
      },
      "properties": {
        "data": [
          {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "<string>"
          }
        ]
      }
    }
  },
  "jsonapi": {
    "version": "<string>"
  },
  "included": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "type": "<string>",
      "attributes": {
        "association": "occupier",
        "salutation": "Mr",
        "first_name": "<string>",
        "last_name": "<string>",
        "email": "[email protected]",
        "telephone": "<string>"
      },
      "meta": {
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z",
        "modified_at": "2023-11-07T05:31:56Z"
      },
      "relationships": {
        "accounts": {
          "data": [
            {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "type": "<string>"
            }
          ]
        },
        "author": {
          "data": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "<string>"
          }
        },
        "interactions": {
          "data": [
            {
              "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
              "type": "<string>"
            }
          ]
        },
        "organisation": {
          "data": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "type": "<string>"
          }
        }
      }
    }
  ]
}