INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6d8c1b94e9cfe671e35251550806861d86e5d8775781d44460013c5a91f34874', 
    'RvLFyrhPExppPhmzqYIudI2jazaFaPiWT1qpRHXjAzA=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00023

Result

int(1)