UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nkn6J80KJPwX3oQ7lMPTxWVSPzsk6pdPNc6ROszLCIE=' 
WHERE 
  key_id = '6a93838023fd5ceffea6bf2c80b622f0b6e4463e552a65cff9d54147cef049d6' 
  AND (
    token = 'nkn6J80KJPwX3oQ7lMPTxWVSPzsk6pdPNc6ROszLCIE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )