UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W87OMiY8216rOh2uwldTSyZ6UVSgi1XTUF5KljUwJyw=' 
WHERE 
  key_id = '96e4d853e548747b437620202459ad85ea682374a4a09773727409c2cbf15184' 
  AND (
    token = 'W87OMiY8216rOh2uwldTSyZ6UVSgi1XTUF5KljUwJyw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )