UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kou1iUyVWOFwoJAgjlgH2dWHahyWbkuUxChL4TiyqLc=' 
WHERE 
  key_id = '6fcfbed78671ddcc652ba77709b02976d191dac66c74e28bc9233dc082196632' 
  AND (
    token = 'Kou1iUyVWOFwoJAgjlgH2dWHahyWbkuUxChL4TiyqLc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )