INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21685016dd452ca91b6be8619752813ddbc97bca3b31f4675b89abe94d861d73', 
    'uxM6kBWaFRUNClYDEbCwtS+8ZMHd0QfmWfp+nP5MZ5I=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)