UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k5EPgiRZl0/otSqBc3+4CD9BtADkL4huxDuTjsUPACk=' 
WHERE 
  key_id = '08918eca8815f649320b293737db7492a8589c352bd3576cb5e5017055306418' 
  AND (
    token = 'k5EPgiRZl0/otSqBc3+4CD9BtADkL4huxDuTjsUPACk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )