INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6b9975c0a44905def0fa17da57f58d928ee13f989c4fa5ecd24f725d791fd020', 
    '8je2UVghRv10WXRwOMWn5QVLX1bcfTb+JnRXR1RAOUk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)