UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rrT+ohHRU/QtaKGxgZmVCswImqIEdjmktfzCpvX0Ehc=' 
WHERE 
  key_id = '4640ed5c9657e71e862c33b586a2b11b91e4ee8c1f44c68ac3560f96f6037a12' 
  AND (
    token = 'rrT+ohHRU/QtaKGxgZmVCswImqIEdjmktfzCpvX0Ehc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )