UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yet1p/I5VzgK63A8iZS3fQTST3juAeWqcpC2ZjlrhRM=' 
WHERE 
  key_id = '8c635e1c17a203b7aa5fd80571e2d2a74d37cc9907a45fb4456d067ce7a1b468' 
  AND (
    token = 'yet1p/I5VzgK63A8iZS3fQTST3juAeWqcpC2ZjlrhRM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )