UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ptLLsgPGKc6CoQ4IGFf7VdkibLv+5t6SIQr2UtS2Us0=' 
WHERE 
  key_id = '3899c2b9a0c002490a5f52be27126aad06f2a6f0c9613fd6db439016e19e0547' 
  AND (
    token = 'ptLLsgPGKc6CoQ4IGFf7VdkibLv+5t6SIQr2UtS2Us0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )