UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'H8nyLOE83Ym3WqT4XAttNC9MRIN0qf4t8q2R3RM+2t8=' 
WHERE 
  key_id = 'd6437c0eab4a9eb6a03f63b2ab7cba4fc50ffdb005e4be6e26ce76c58ef4fcb6' 
  AND (
    token = 'H8nyLOE83Ym3WqT4XAttNC9MRIN0qf4t8q2R3RM+2t8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )