Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0fb466fa853c125c7905071dff6cc257acabfa1ccc92261b85d4a447f0b77f1f' 
  AND token = 't/kWuD6RXqumqzcQtWei5ZlWjReWU7QWBOfT0zJg9HU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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