UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PlBZuBP+ByRU485O9GQAF+GKe2uITGVjBcNyw6gmHkE=' 
WHERE 
  key_id = '99f8edc7b85712843d6f585a22d1c7dd2ec57228bd6059f9e79ee78c01f48239' 
  AND (
    token = 'PlBZuBP+ByRU485O9GQAF+GKe2uITGVjBcNyw6gmHkE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )