INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a3921df343a46c23d44ce3520c5f4879680415910f574115011dac979ce8af4f', 
    'MLlqyLk5tO7433WgJ1onxVK9ZoaIMHrwg8JViPQ7DzQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)