UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PZKenCFdVtYpI3ZexcQj1IPFQoWGx3uIgTCHag7qUtE=' 
WHERE 
  key_id = '7b0a8e6dbe54097e11d1a0befe9e3f503a96a6863ce3a355d5530e119a37e4ed' 
  AND (
    token = 'PZKenCFdVtYpI3ZexcQj1IPFQoWGx3uIgTCHag7qUtE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )