Try JsonParser
no, it's not working too
{
'contacts[add][0][id]': ['4803859'],
'contacts[add][0][name]': ['first second'],
'contacts[add][0][responsible_user_id]': ['7518523'],
'contacts[add][0][date_create]': ['1633940121'],
'contacts[add][0][last_modified]': ['1633940121'],
'contacts[add][0][created_user_id]': ['7518523'],
'contacts[add][0][modified_user_id]': ['7518523'],
'contacts[add][0][created_at]': ['1633940121'],
'contacts[add][0][updated_at]': ['1633940121'],
'contacts[add][0][type]': ['contact'],
}