Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'df41e2fe02cd28abb09a752a366202593d1fb0df27024ee3178ec79afc123c0b' 
  AND token = 'kph7G2cQuPVKjh2OUJH+Vq7ZaRFR326D/Ao8MNitmY4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00060

JSON explain

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