UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DMMCCuoX+Qv5WrqsMguZ22WBV/liurtGHGhAtNBA/tU=' 
WHERE 
  key_id = '4a6a8a46991bdf4e7fd111c682918b6d792fbcd3eae23da2036e23b4227e2cb1' 
  AND (
    token = 'DMMCCuoX+Qv5WrqsMguZ22WBV/liurtGHGhAtNBA/tU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )