How to create complex-rules for modifier of product in bigcommerce - bigcommerce

Question

I am new in bigcommerce and type to added complex-rules for Modifier of product. below provide the URL of API URL and JSON.
every time give error "The rule must contain multiple modifier conditions with unique modifier ids or a variant condition and modifier condition"
https://api.bigcommerce.com/stores/{$$.env.store_hash}/v3/catalog/products/{product_id}/complex-rules
Please help where I wrong in send Complex Rule request JSON.
Modifier:
{
"data": {
"config": [],
"display_name": "Donation",
"id": 188,
"name": "Donation1645178599-166",
"option_values": [
{
"adjusters": {
"image_url": "",
"price": null,
"purchasing_disabled": {
"message": "",
"status": false
},
"weight": null
},
"id": 352,
"is_default": true,
"label": "$5 Donation",
"option_id": 188,
"sort_order": 0,
"value_data": null
},
{
"adjusters": {
"image_url": "",
"price": null,
"purchasing_disabled": {
"message": "",
"status": false
},
"weight": null
},
"id": 353,
"is_default": false,
"label": "$10 Donation",
"option_id": 188,
"sort_order": 0,
"value_data": null
}
],
"product_id": 166,
"required": false,
"sort_order": 0,
"type": "dropdown"
},
"meta": {}
}
Complex Rule request JSON:
{
"product_id": 166,
"sort_order": 0,
"enabled": true,
"stop": false,
"purchasing_disabled": false,
"purchasing_hidden": false,
"price_adjuster": {
"adjuster": "relative",
"adjuster_value": 6
},
"weight_adjuster": {
"adjuster": "relative",
"adjuster_value": 6
},
"conditions": [
{
"id": 5,
"rule_id": 5,
"modifier_id": 189,
"modifier_value_id": 352
}
]
}
Error output:
{
"status": 422,
"title": "The rule must contain multiple modifier conditions with unique modifier ids or a variant condition and modifier condition",
"type": "https://developer.bigcommerce.com/api-docs/getting-started/api-status-codes"
}