INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '81f3f17ce7c44994afa4b301df4b7ca20157ffb0bf0424a5a7db4a2926daff21', 
    '2Lt92Tg5CnkBs7gcPj9oUjGZbVCWo98KWB0UVBIy/L0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)