INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6939f514b53731dceb9046158095af60da0dc93c058824d226a1428434460c9b', 
    'H5wNK4ABgWpdELRWJzb+yPjokvbqkTNSA8jR0Ey+ebM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)