UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yoRJy918W61wJJNTlKsepGGSy0B99brn6P4/k9aGXug=' 
WHERE 
  key_id = 'e6134ecf4943012dc341fdf1df93208b298799959d7621b73407b05e9974f914' 
  AND (
    token = 'yoRJy918W61wJJNTlKsepGGSy0B99brn6P4/k9aGXug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )