INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '2b21bd92d8f13bcc59db7c7debc41a9cecf9d0ceddf82d170dfb36ac436aa6a2', 
    'EWb4cgYka12jFs+lz01CVMj9YRouWZjy11SbN2+lEOs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)