Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '526f61e6060af909b8a4400008e85b3548a0064ed6c1600af3843c5df960acce' 
  AND token = 'p6zl81IGMa+lSiFSmTOFJNidXOar0n13ZGpfh2PBGsc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00881

JSON explain

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