UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rta0Wtq+SeCXNF8up7oJnxaUbH5VNplYBQoG3rV+dfg=' 
WHERE 
  key_id = 'c500255f727b956362a06155fd1036a4b4220d5c8eae774b531c32c2de5ffe5e' 
  AND (
    token = 'rta0Wtq+SeCXNF8up7oJnxaUbH5VNplYBQoG3rV+dfg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )