UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g6P5qW03yAjeanN9PYx2thi2cxTjmHCIuCc7L/qt7Cs=' 
WHERE 
  key_id = 'a3c2cdfe2a1a205c5ff3ce9a9421372673ce27c12460d2dce7667de6df835640' 
  AND (
    token = 'g6P5qW03yAjeanN9PYx2thi2cxTjmHCIuCc7L/qt7Cs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )