Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f41738afaff8b66342dc07350b098ca08c8353285d7b12161a9e9b6d2532c277' 
  AND token = 'KOVz3i3ccHGpbh1CYtkLIF3vsiew2g9D2QqD7uxaWS0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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