UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UbgfFAfGZTo+kJ6ehTIfDyqede3Qmf8gpuHEk8NkmiA=' 
WHERE 
  key_id = '496e787bc9def98125012f9ef48e8c43c9174148a6096d93714ed23b573b4bf5' 
  AND (
    token = 'UbgfFAfGZTo+kJ6ehTIfDyqede3Qmf8gpuHEk8NkmiA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )