UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'T+yFtjiM0qbSVygPxy6dK+3w50H/oBP4w4fUPED7AVc=' 
WHERE 
  key_id = 'd53f2be1334722c10efd60644d1d52651e59d698b33676756878076404b43e4a' 
  AND (
    token = 'T+yFtjiM0qbSVygPxy6dK+3w50H/oBP4w4fUPED7AVc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )