INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8c8c453431270f3760ae9641d345f0915e753ac9edbac1de98ae02f07f5a3452', 
    'KbkfyxWOAiSjXONYRv9eLw//IuEfzUw2A0FYkyUJSEU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00017

Result

int(1)