UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E4y+0zDRI7wiyXtiXORlqyTxfzYbpNOLlciN/KkXC0w=' 
WHERE 
  key_id = '1a8307e574fd911c2b21bf11d5af44612e0b0386f31d0ccfabafab3de24802b6' 
  AND (
    token = 'E4y+0zDRI7wiyXtiXORlqyTxfzYbpNOLlciN/KkXC0w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )