UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uL4gwbLWTD4BVYFMWxna3Bpz5BdJIYv7l/OI+ym2PAM=' 
WHERE 
  key_id = '42e10136932cc145c6e65d802959a9b81ee45493e5c4f3e5e5d159598acd57cf' 
  AND (
    token = 'uL4gwbLWTD4BVYFMWxna3Bpz5BdJIYv7l/OI+ym2PAM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )