UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SDAkCUmUm6XlWJ4EMljxwpMGKQ/Tt/ea4NtbDa/CkOc=' 
WHERE 
  key_id = '830edb52504735cc43eb5e05ad61859fbc43799fa0fd1e0b0ff4870dc6574b51' 
  AND (
    token = 'SDAkCUmUm6XlWJ4EMljxwpMGKQ/Tt/ea4NtbDa/CkOc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )