Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1359e3dac63fcedde2404333c74e14f0a56710a8560f2188b07428f1aa58c12e' 
  AND token = 'Xdn+MreqUeuq0zU+HBEs7YI4oKRRtRrnbDx9//C6Rk0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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