Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '729869d098c0648f76898f6d7cbef1d6baa6fde6be91498ad1ecccae8e79c7e5' 
  AND token = '/LuawUAqJoin20GSjBYC5nPcGKf1bHrx57IDKJ+gyg8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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