INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '1518fe06191e156cf81fe2be7dd6457c5b7345c8eee8e516289477a3e71e9688', 
    'DB7Iv8kEud4iq2knzq8+Pd5xpQQhD6J3F7pndwtDHBw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)