Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1285a57afb49f3a0f3fd3d884600ebd72f7dc61235661261a45bf3deb49119b8' 
  AND token = 'eYhMoWkICOF2LCz8Yc1PbYd0lzuNwQsCjjISOl9Ylok=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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