UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I6pMUejEklVLhqWyoI/JjpgWhivhgupup6gfuwSTpeQ=' 
WHERE 
  key_id = '83641175b7dc54845f1ee4ebac0b5c517dfef977b955f2f9516bf5d1b5817e8e' 
  AND (
    token = 'I6pMUejEklVLhqWyoI/JjpgWhivhgupup6gfuwSTpeQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )