UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ufhwSJIKC1JHIDm9sebmbPspu2Sz084yuQczIY1xuEk=' 
WHERE 
  key_id = '612bf268ac867cc085e4fe835281a7e27df545daa78786e6733737c7f4e202e2' 
  AND (
    token = 'ufhwSJIKC1JHIDm9sebmbPspu2Sz084yuQczIY1xuEk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )