UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K6Hi0DhA8yW4QmCTVU07N7tNRXxzTSqBCXQ68WPWvkg=' 
WHERE 
  key_id = '5bb304157ff1c06e96e24552f40b62458accdf671375ed19f0f82525aa76a541' 
  AND (
    token = 'K6Hi0DhA8yW4QmCTVU07N7tNRXxzTSqBCXQ68WPWvkg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )