INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '5a55009ab816968d562b11032333b163bc6b16837386b944b2fc6ac17bdb03b9', 
    'IFismDloHZAVv18gaWYY0qcnQAL7Nj0ZsTMahH2iqnE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)