Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9244504e3ff00b41623762baf689a1b2409333446ff7fac5cc886312e98b42d7' 
  AND token = 'cJxERoxGjBDuZgaE2qwaBjac3XdsyJQxoeSs2EAjSXo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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