UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lN3J+vMsiqSpr/7P8gf2NF7d2O5ZozQqG4pC6TmaXNg=' 
WHERE 
  key_id = '8f91318d7c7627bb53deb39299f274f3eecb772bbde952b4dcaab04b3aa0de98' 
  AND (
    token = 'lN3J+vMsiqSpr/7P8gf2NF7d2O5ZozQqG4pC6TmaXNg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )