UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AMuDiFMhsQ7uiNacV3azNtsbokE/PxImvc2aotlXVmI=' 
WHERE 
  key_id = '4f268adec14c0605f8dce9c0a3a6f10af9e0879647d390d907246929316f8141' 
  AND (
    token = 'AMuDiFMhsQ7uiNacV3azNtsbokE/PxImvc2aotlXVmI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )