UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wSmqtBWib1SRAW8zWc0pCZand+cLWVT21JdB+WoFET8=' 
WHERE 
  key_id = '4d994a25d212bb667b0e37a2c29ce8984c82a218d8a5488abbf8ef73fc77f728' 
  AND (
    token = 'wSmqtBWib1SRAW8zWc0pCZand+cLWVT21JdB+WoFET8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )