UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MdBBm4rfPKd7kI2XvRc7CLW864y0PYEFPjsweOk7o4g=' 
WHERE 
  key_id = '54ebb3c97f72e20b7f9a959813ba087bf83343e13b482d1b0cfe91d8c859e19a' 
  AND (
    token = 'MdBBm4rfPKd7kI2XvRc7CLW864y0PYEFPjsweOk7o4g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )