UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DtTaejTVEkw6vgaDMhkUhRFt3NF671FibzJF99/DNPg=' 
WHERE 
  key_id = '3154e501f8b311fc9dd58cff408e555decf472fa3484922a27708844c7ee7426' 
  AND (
    token = 'DtTaejTVEkw6vgaDMhkUhRFt3NF671FibzJF99/DNPg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )