INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4521437e6d7b15685b7de7696d489b66bd5fbe1c9c5d7d5bc43723bc3881b801', 
    'QSGXKAWj1GFHaBkA3S63FvL7Z+HFlXjr8E7J+VASzps=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)