Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01b49c8f47fc27da317c39f235cada1b8b889086637b79cf16db111c22cce028' 
  AND token = 'AXnbYUXHG42GGmW8EA42lK5JJUr78r1Q0yde819N7F0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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