UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LY6dgYSI2IDHU42v4lumwiUxqGPCAwjIVCP0ujPTCjk=' 
WHERE 
  key_id = '993bc4d7e17de7f6e2791156716b0dd6a146dba40470d67b3c4901b07abad708' 
  AND (
    token = 'LY6dgYSI2IDHU42v4lumwiUxqGPCAwjIVCP0ujPTCjk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )