INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b719c571902ed9a2e069b148e46a10279618dad9a063c284df93e7ba86b2471d', 
    'K0bLnB4WTnL9//cR9leBdMiARAAuPpHWvQgybRPyEVs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)