Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e8da165d2026dc95d69d37c7530cbf7f511f164b58d44debf5b8ace3cb0de361' 
  AND token = 'kzhbFvegHCttO2/TbCLZU/1RzwPVI2vSaO9E2Ogl2yc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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