INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51fff7b2521add4dbda4214ffca4c8f09f6564bc2fe509be01cc961f798d169f', 
    '/2I9GiZWQrJcqGMV+kclwAKXHQjtuOwGGkW6b5pBX00=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00037

Result

int(1)