Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '106e7da6a4eb76da8c689ea919372340af1bf24ce6581ff6eb51ea53052072bd' 
  AND token = 'bCgOlZdCSde3EnwiWmmAByA1R3vTv0qMlY7DWg1lnXQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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