UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'agHLkhba/eWu0+/DopmjUFmrk+dl7ILd4E+Y9nmHKDo=' 
WHERE 
  key_id = '5a0a50b6e6b99b91901e5f2cf10c94274cbe86b94941ded4ebe0090b560f3696' 
  AND (
    token = 'agHLkhba/eWu0+/DopmjUFmrk+dl7ILd4E+Y9nmHKDo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )