INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21b189ffd411b1a0aaed01adf5e6fc7ca215c16230b5f1446a4f274b2291e328', 
    '2iwT2pgN903zw/mSb4/YYqGxcYxEEJhC8qONKUVzcng=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)