Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd7d0e5627768bf2233237702676b45d07aa96cb97def4d8b4f96191e2ca78332' 
  AND token = 'wSV9jFfGATmL+cSus33Zu4K+ikyEfebMhhkDZDKpX9U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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