UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z6qMQsjHxsnNA3wrU4GjSafImY4RjxVm78jyYTRZ4Rs=' 
WHERE 
  key_id = 'e0e8bd18654f1c043d54f8c19c2741d3b486791437a2bb2a39404418334a5014' 
  AND (
    token = 'z6qMQsjHxsnNA3wrU4GjSafImY4RjxVm78jyYTRZ4Rs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )