Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e59533e099b230fc170eb1c2bca617ab39820990363f6f5d8e5af8fbe12e971' 
  AND token = 'ufJMrLhHcrKV8l3EbPMcQu6n+17ZD+74ZTebCwKYGq8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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