UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RZaTSJCA+E35D6eAy8UDgYnffsN/WYH9x4VL1NuAiZQ=' 
WHERE 
  key_id = 'd997aa2854d05756b8cb3ac5c4b34a9d37e5932824e2442c9f9c286ff1300852' 
  AND (
    token = 'RZaTSJCA+E35D6eAy8UDgYnffsN/WYH9x4VL1NuAiZQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )