INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51712d91636d7ba58a38dab625dbdb0ec21397e241ab51f704c483a7f944ff6b', 
    'Nf+qDW7nWxwAqRSoeTDoToQbCizCmIfBzprroNqH1kk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00029

Result

int(1)