Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '35ced697ee591d5d249fa0caa441c9ba24915890729fa20221bf94009f7608ce' 
  AND token = 'aTA4WbVJo6RuiRBQeQh426A3JsfIB8P2UxqDJf7Cy9Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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