INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3d624531838268d4962d24017626b4e809d304ee0efebff3af9685bce36b4fdd', 
    'Qqq78QWHpMK526zz1fc3YMWMubyiK70Dvqmz4+7i0nk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)