INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'ec12092fa080dea47a353f52ee8f105397ad519a15cf2520914d15b1afe15edd', 
    'oFgQO/9dw4hK7MmxFTYj0L1ngq3RtiugIYTUiGy0Drk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00040

Result

int(1)