UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LU2MYtmaZb9/Lp+nkLVdsJJ2Ov/3/wGHI3Kj6tFp3rA=' 
WHERE 
  key_id = '19f8cca2729d73cee8dafe03b0336913720b80b2dd1eeb0d353794bdf2ebe972' 
  AND (
    token = 'LU2MYtmaZb9/Lp+nkLVdsJJ2Ov/3/wGHI3Kj6tFp3rA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )