UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mcjS6qcgsiAAytVZbhvIZWjzvHXNtCTqnIa2KPy546U=' 
WHERE 
  key_id = '2f527792ca7281f3de23852b1027c7f540e67d23649782676fa909899b9b3f4a' 
  AND (
    token = 'mcjS6qcgsiAAytVZbhvIZWjzvHXNtCTqnIa2KPy546U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )