Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2cd032b698fe554ed4c78af99bd93983dd5d217096c0ac47f2634afaa106efb4' 
  AND token = 'Gvywt9gPHeoEeA7139Sdquz2FyJdds21rN5h9hunWUc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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