UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VE0Y8cOJfQ3BfNmVbtO4jTHW7fixTKt0adWNVi2ks+8=' 
WHERE 
  key_id = '993ade2ed601cae8b158fc886fda83fb8534c65ac913bcb7490909da85f36d87' 
  AND (
    token = 'VE0Y8cOJfQ3BfNmVbtO4jTHW7fixTKt0adWNVi2ks+8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )