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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '24dd249844fbca958f1fdebbab519d28c0842d3904a0bb06867b511fe641cfcd' 
  AND token = '5216HnA2lQxIpr8cjea05Jn9M3/LG06hZ9CfxTfWwao=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}