INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6b5cc21f4ed539ba19f157a5aea07bb0004763716b8320c7315665d5b7b4a987', 
    'saU47EKrM5V//MjRtsCHJu5LtIaRnYzJ0mKJp/4CI9g=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)