INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '502ea8afdf08c7374016a21cc5975dfc1f153b7440e441be6ed2d634a21ce28a', 
    '75spbyxVdOp1BMDxXDdBHEewC7N08dzQ5KUTntIwCBg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00037

Result

int(1)