INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21455dba31f606e83d58d6fb34f1a2e1a0407f5204d6d770dfa4327545e65e21', 
    'NxvYbQrLHkplQp3IUeKRigHOHDNCu+GtICZT1CugebQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00029

Result

int(1)