SELECT 
  badge_id 
FROM 
  ushop_seller_badges_assignment 
WHERE 
  company_id = 1

Query time 0.00027

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "ushop_seller_badges_assignment",
          "access_type": "ALL",
          "rows": 2,
          "filtered": 100,
          "attached_condition": "ushop_seller_badges_assignment.company_id = 1"
        }
      }
    ]
  }
}