UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1MmFeophsj4zCYMA8Y1GrTNIUNUJSVtKTRWtC//eU/M=' 
WHERE 
  key_id = '934ebbff93a67ef4b0b787fdb4143af78da9ac15649a10e44a4a54e6f7149656' 
  AND (
    token = '1MmFeophsj4zCYMA8Y1GrTNIUNUJSVtKTRWtC//eU/M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )