INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '16ff394d888f4acf473c476d1daeaf8782606617551f515c895f5af74de6659e', 
    'SxEHkTYqrsRkvlZ6sbPTbI35amelTOVt4ipmg2egCWE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00018

Result

int(1)