UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zWHk4Y7RiJdwuTygTF/WonHuFRtZmqu9xwq1gpQ9fsY=' 
WHERE 
  key_id = 'ef51d4923c255a51a9851a2271a5f5fe85074b0bc7e36246727795f90a8e1b8a' 
  AND (
    token = 'zWHk4Y7RiJdwuTygTF/WonHuFRtZmqu9xwq1gpQ9fsY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )