Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4653c0a9d1061ff547ee65510d5e7d6f069f54f7a10441b408978568989fd61c' 
  AND token = 'ANSdvlkRnhVUSuCaeTjVNPrPsDPvcTsaXUBtOlfIbgw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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