UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dLkfltmFcoWha12wr9GMZXhqzet4wBWGsgZvVvLgFtg=' 
WHERE 
  key_id = 'd2834d57ff41774979bc8d2e02c6a371a85043539a897545e78b7752cb2a82a5' 
  AND (
    token = 'dLkfltmFcoWha12wr9GMZXhqzet4wBWGsgZvVvLgFtg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )