UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r+ZRtt9DkqIaDqQ45H4jfAq25W/6ETKd7PjPrQNUx/w=' 
WHERE 
  key_id = 'e75046b067ae65a2f61d96ca5aa731b7a00f9738c5a8a17b1507f9fa9d56ff9c' 
  AND (
    token = 'r+ZRtt9DkqIaDqQ45H4jfAq25W/6ETKd7PjPrQNUx/w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )