INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '338a6bdda5618321c64ae61319cc3961602988bf0b0ad3390bf01fc2b2705383', 
    'DB0yx3j0EuY58cjm3YmWzk2LicyI23WPariTSx1a9F0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)