INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6851df6e9f001a58c58afd1459234af434f7ccdcc0ce2d4b22363225c5e3bb39', 
    'dtb+UMMf5lsF5VHq/YWG7ybK1N9WiZZ6Bbp1DKMSDCs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)