Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '058a7cba900e71550b74f24ccfed3af9df19d1ccb4d0630b205377cc1c08ccd4' 
  AND token = 'q2jWgEi9vFAd8bXWNUE5CPerIPcPcQu4pzvux9c74LM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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