UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jukTtEK/GyjFi485JGjN8Ijc+zQ0udzclWUOl+zmk+c=' 
WHERE 
  key_id = 'e3a6413731c3f04292391788e75ef69066970d6d70930b7779a1a02422d71577' 
  AND (
    token = 'jukTtEK/GyjFi485JGjN8Ijc+zQ0udzclWUOl+zmk+c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )