Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5963b5ea45b788fec357387615baad8258d2b1e7f41875fb1ef0110731ab907e' 
  AND token = 'lTxgOdZk8Ja9dtilKJv9RsPhAjwGvcJMIi9eauGJBmw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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