Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '47d26c33838308e0e78b06be19ba25318e622dca152e1c7c6fa712f7369f59a6' 
  AND token = 'sFAXJh8CjpDNsHfI/X8N6l/JNOLAxS35/mUU+VgxXjk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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