INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a5703dff99568d661daa225ab78981b9ed85a9d134fb125e9e28a7da925607e1', 
    'UReCvu4rZ2TbQKItav/OtXj0jOzFyOrwGjZK1lSZ/+w=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)