Insert ACF Block with wp_insert_post

I have an ACF Block called "pd-text".
The block contains the fields: title | main_text | pd_block_id | columns_in_row.

When I add block in the Admin panel I have generated code:

<!-- wp:acf/pd-text {"name":"acf/pd-text","data":{"field_62d53c8533fbd":"Block title","field_62d53c8533fc5":"Paragraph 1 - text text text.\r\n\r\nParagraph 2 - text text text\r\nLine two - \u003cstrong\u003eparagraph\u003c/strong\u003e two.\r\n\r\nParagraph 3 - text \u0022quoted text\u0022 text text.","field_63beb8efe0d5c":"my-block-id","field_630f632a63aec":"1"},"mode":"edit"} /-->

I would like to build a code that will insert ACF Blocks to the post_content with the function wp_insert_post();

The problem that I have is that the generated JSON output is incorrect.
On the front there aren't rendered html tags

and also not adding the new line.

I found the code to use md5() function to generate underscore field key, but the value is different that this what is on the code above, so I suppose that also is wrong. My question is how to find the field ID?

What I'm doing wrong to save the ACF block with the insert function?

Generated ACF Block JSON:

<!-- wp:acf/pd-text-with-bg-image {"name":"acf\/pd-text-with-bg-image","data":{"_block_pd-text-with-bg-image_columns_in_row":"field_b716db7dfe0831e64233e682bc0a8280","columns_in_row":"1","_block_pd-text-with-bg-image_pd_block_id":"field_27f7ac094f1ba4b063cf82d301713de2","pd_block_id":"my-block-id","_block_pd-text-with-bg-image_title":"field_aa88e266bf0bbbee20d20d4d7172c755","title":"Block title","_block_pd-text-with-bg-image_main_text":"field_922e1888941df5b1fc930ab8a9eaab91","main_text":"Paragraph 1 - text text text.\n \n Paragraph 2 - text text text\n Line two - <strong>paragraph<\/strong> two.\n \n Paragraph 3 - text \"quoted text\" text text."},"mode":"edit"} /-->

My code:

$acfOutput = '';
$acfFields = [];
$blockName = 'pd-text';

$fieldData = [
    'columns_in_row' => '1',
    'pd_block_id' => 'my-block-id',
    'title' => 'Block title',
    'main_text' => 'Paragraph 1 - text text text.
          
Paragraph 2 - text text text
Line two - <strong>paragraph</strong> two.
          
Paragraph 3 - text "quoted text" text text.'
];

if(is_array($fieldData)){
    foreach($fieldData as $fieldKey => $fieldVal) {
        $key = 'block_' . $blockName . '_' . $fieldKey;
        $acfFields['_' . $key] = 'field_' . md5($key);
        $acfFields[$fieldKey] = $fieldVal;
    }

    $json = [
                'name' => 'acf/' . $blockName,
                'data' => $acfFields,
                'mode' => 'edit'
    ];

    $fields = json_encode($json);

    $acfOutput = <<<ACFJSON
        <!-- wp:acf/$blockName $fields /-->
    ACFJSON;
}

...

$postData['post_content'] = $acfOutput;

wp_insert_post($postData);

Start at the wp_insert_post() call and compare its post_content input with the manually generated ACF block JSON. Review the generated field IDs, md5-derived keys, and newline or HTML handling; done means the inserted block produces the expected field values and rendered paragraphs and line breaks.