UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8k1qt4Eo47zVaxAsqNKf2vH/hH+986lH4FXQJmU35Rs=' 
WHERE 
  key_id = 'b48d72e6f1f386e7faaeb7b8739e9b7bfa8609f2908069e9b278ca8ba992cd50' 
  AND (
    token = '8k1qt4Eo47zVaxAsqNKf2vH/hH+986lH4FXQJmU35Rs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )