UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CmKMbust+YHbIb1iQlGvc/IF6ErAUND1VcLjoo5oMFg=' 
WHERE 
  key_id = '656b323a389eced5b5412f267e090822c4e9708a7bd5f7f15a6e7d727455e2c4' 
  AND (
    token = 'CmKMbust+YHbIb1iQlGvc/IF6ErAUND1VcLjoo5oMFg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )