UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '79fr3rXoGhFwdvMzJfPz3pHf4ygIwCX775TOGlGYtyg=' 
WHERE 
  key_id = '4204d749aa542fd48621ec66663e86536743aa68496576dceb1652c10438b3fe' 
  AND (
    token = '79fr3rXoGhFwdvMzJfPz3pHf4ygIwCX775TOGlGYtyg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )