Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '752dedc271b787ccc27d3394ef2b9d2c69af9a8a04675cf56f095df683506e4c' 
  AND token = 'zhkffVKPSxaL11TjNMUXN5ED9LAffiOxY6ckRGzv6zc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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