INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6b353c73734889a8a8a25de1e3c1586928d359045c7ac2baf34ee6fbd9848ecd', 
    'dPOFMQlGCJvpbejKHRxhFi82HIRAhpByCh//FmCeyUk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)