UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mPQO9bkszu+mG8GKDnxRi0uA3prqlGzCoQD8vvUJPlI=' 
WHERE 
  key_id = '93de4000c5e4ef708530631c49a857873c2ea49afb293481ddf397fde6949fa9' 
  AND (
    token = 'mPQO9bkszu+mG8GKDnxRi0uA3prqlGzCoQD8vvUJPlI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )