UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Eln7/B4Y8YG9M1rpttlGkOs08Ew6RmmyLI0qudeTOD0=' 
WHERE 
  key_id = 'e5a3e8b3aaa1632b278ebff8102bf1c9415fd2e899c71fa62ed06840dfe57bf5' 
  AND (
    token = 'Eln7/B4Y8YG9M1rpttlGkOs08Ew6RmmyLI0qudeTOD0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )