INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51a65803d6eec2d4e426169650c528eaa21589257e1f725e9ab03d34edcee6bb', 
    'eZrXazA6hWmOCZ1YX/6mUTedbe3HZJ7lWuerPPIjbxc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)