Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c13747a4bcdb7e08a8633e4c3caaecce867da639c780c776150760ce283f9c7f' 
  AND token = 'Af/IEAHg/0365uaVx/zyT7ATnu7wzSvjF45bEx3MeOc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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