INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4921080fa9fad93cb1daadf8e2bc83b41228bf342845291e183317743d63605f', 
    '9kV4ta4jt8QTl9LegEgGtTG9zWOt2bYPO5ypk9WO3YM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)