Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e30bf6d2f98b7ef2c86f39f48e222c21e1522d3979446e67ee6932294db9b67' 
  AND token = 'CGSsnpZBZaICj9vNf0H/MeCHy2OpCmAjFqFclgjJ0a4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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