Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '695c3b46128ef988feb17e072a27c192119e0a7a586c7417d798c29ea92315ec' 
  AND token = 'gM7tVnf4Jn4CCM7yUr6yPekIjtfNzFo0qg9ElnJ5mTY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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