SELECT 
  * 
FROM 
  jmj_product_feature_variants 
WHERE 
  variant_id IN (
    3149, 3150, 3158, 3233, 3245, 3246, 3247, 
    3157, 1688, 1689, 1690, 1691, 1692, 
    1693, 1699, 1700, 1701, 1703, 1704, 
    2103, 2104, 2105, 2106, 2107, 2110, 
    2112, 2113, 2114, 2115, 2116, 2117, 
    2118, 2120, 2121, 2122, 2125, 2126, 
    2127, 2128, 2129, 2131, 2132, 2133, 
    2143, 2145, 2148, 2153, 2154, 2163, 
    2164, 2174, 2179, 2181, 2183, 2185, 
    2195, 2206, 2207, 2208, 2209, 2214, 
    2230, 2235, 766
  )

Query time 0.00913

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "153.61"
    },
    "table": {
      "table_name": "jmj_product_feature_variants",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "variant_id"
      ],
      "key_length": "3",
      "rows_examined_per_scan": 64,
      "rows_produced_per_join": 64,
      "filtered": "100.00",
      "index_condition": "(`jmj_test`.`jmj_product_feature_variants`.`variant_id` in (3149,3150,3158,3233,3245,3246,3247,3157,1688,1689,1690,1691,1692,1693,1699,1700,1701,1703,1704,2103,2104,2105,2106,2107,2110,2112,2113,2114,2115,2116,2117,2118,2120,2121,2122,2125,2126,2127,2128,2129,2131,2132,2133,2143,2145,2148,2153,2154,2163,2164,2174,2179,2181,2183,2185,2195,2206,2207,2208,2209,2214,2230,2235,766))",
      "cost_info": {
        "read_cost": "140.81",
        "eval_cost": "12.80",
        "prefix_cost": "153.61",
        "data_read_per_join": "99K"
      },
      "used_columns": [
        "variant_id",
        "feature_id",
        "url",
        "color",
        "position",
        "abt__ut2_color_style",
        "abt__ut2_multicolor"
      ]
    }
  }
}

Result

variant_id feature_id url color position abt__ut2_color_style abt__ut2_multicolor
766 132 #ffffff 1 default
1688 255 #ffffff 0 default
1689 255 #ffffff 0 default
1690 255 #ffffff 0 default
1691 255 #ffffff 0 default
1692 255 #ffffff 0 default
1693 255 #ffffff 0 default
1699 255 #ffffff 1 default
1700 255 #ffffff 2 default
1701 255 #ffffff 3 default
1703 255 #ffffff 5 default
1704 255 #ffffff 6 default
2103 280 #000000 0 default
2104 280 #696969 17 default
2105 280 #808080 23 default
2106 280 #a9a9a9 25 default
2107 280 #c0c0c0 27 default
2110 280 #778899 37 default
2112 280 #191970 52 default
2113 280 #000080 53 default
2114 280 #00008b 55 default
2115 280 #0000cd 60 default
2116 280 #0000ff 63 default
2117 280 #4169e1 70 default
2118 280 #1e90ff 75 default
2120 280 #6495ed 84 default
2121 280 #00bfff 88 default
2122 280 #87cefa 93 default
2125 280 #add8e6 104 default
2126 280 #b0c4de 105 default
2127 280 #e6e6fa 109 default
2128 280 #f0f8ff 111 default
2129 280 #f8f8ff 112 default
2131 280 #e0ffff 114 default
2132 280 #00ffff 119 default
2133 280 #afeeee 125 default
2143 280 #2f4f4f 151 default
2145 280 #3cb371 166 default
2148 280 #556b2f 173 default
2153 280 #8fbc8f 201 default
2154 280 #9acd32 209 default
2163 280 #f0fff0 241 default
2164 280 #f5fffa 242 default
2174 280 #f5deb3 256 default
2179 280 #f0e68c 266 default
2181 280 #ffd700 279 default
2183 280 #deb887 294 default
2185 280 #bdb76b 301 default
2195 280 #e9967a 368 default
2206 280 #bc8f8f 415 default
2207 280 #ffe4e1 428 default
2208 280 #ffc0cb 432 default
2209 280 #ffb6c1 433 default
2214 280 #c71585 464 default
2230 280 #d8bfd8 532 default
2235 280 #fffaf0 547 default
3149 31 #ffffff 111 default
3150 31 #ffffff 112 default
3157 255 #ffffff 0 default
3158 31 #ffffff 117 default
3233 31 #ffffff 121 default
3245 31 #ffffff 129 default
3246 31 #ffffff 130 default
3247 31 #ffffff 131 default