UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fNA71LO+aXomRz4aGOgkxDAEhzrSw8EsdU375Ttf2FY=' 
WHERE 
  key_id = '506a884a979459ee9f9e593758d83bbf4bf80c98062fe4785ad15a0e527b7f9f' 
  AND (
    token = 'fNA71LO+aXomRz4aGOgkxDAEhzrSw8EsdU375Ttf2FY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )