Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd606d182d667ceffc59f518603edfa2ec3ae996239d7699bed6af36fb693084a' 
  AND token = 'VAoAeejiRUiI1JFJQmCDaw/1XQQs8kz1jW0vxnM50Y4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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