INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4b7946c5805c1b4dcb9b27949420223275717c75cb221d8cf3ff1b849efd25b9', 
    'QbG63Irg0xGOibajtz2EKbw7PIeK2qbjWSBJ1Xj/eyg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)