INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a679d08024a20d5e41ed73d7013795b9862ad17faa0f9ef499dfe2ab70c899cd', 
    '+LetAZ234yrLrZwgLCnGuwGnhBk6FJk5zFfGdg4GBOg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)