Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f63a0aec1c03b87ecc5e89337c9236221607e363c85c32202b2600dc800ebd4a' 
  AND token = 'w6tR3hkDHV7iYrxNiWm/tennV/7sXC1K/esoLZcbrks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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