UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '966vHDjG6mU25hlLGGigB0b0EkUnF1pIvydEfoTNckc=' 
WHERE 
  key_id = 'b42202c937d9fc81901d777262a4e7e4b9bb08ff405c5592f769f273521016e8' 
  AND (
    token = '966vHDjG6mU25hlLGGigB0b0EkUnF1pIvydEfoTNckc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )