Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb2e522d01176bd90e9b31a83fe857b8a99425f574ef96f7d1005832a75012ac' 
  AND token = 'ptCAgV/PX9Nt45GGyr8wuv33rn0I47vB1/naQVwlfu0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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