UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TXL0C56XNrb+0uj7rDPRNWyHrkEVvfeGHfAxpI65rY8=' 
WHERE 
  key_id = '6fb98dbbc41b0ac823a02e2a7cac4e0781abf5c0cb8e4ce29a6ee2549fe4176e' 
  AND (
    token = 'TXL0C56XNrb+0uj7rDPRNWyHrkEVvfeGHfAxpI65rY8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )