UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NvDnxEtD2sQ6xDq31T+8Cj3VvmW0blkQX0kVH+kR3j0=' 
WHERE 
  key_id = '259eb756c8eac8d1112702d5efb2e71b9e51c5609d6a4eb924870d98e0633555' 
  AND (
    token = 'NvDnxEtD2sQ6xDq31T+8Cj3VvmW0blkQX0kVH+kR3j0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )