UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gcuLibylqy5K4LeWQ1bVVm7/c5wmR5Bs/rtCsFrc+8M=' 
WHERE 
  key_id = '29f91dfb92ce706e944856b487fa230b672236a7af5172cf3053f1ecc3e2ce68' 
  AND (
    token = 'gcuLibylqy5K4LeWQ1bVVm7/c5wmR5Bs/rtCsFrc+8M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )