UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UguVtovwfAzVeCzOQS8wkubmjwxyFPX3n+3dLfS+Bo0=' 
WHERE 
  key_id = '751a2eff8f8d0bbd4483d50f74cf7e00a48e022d09927994e870249a6d8e6c46' 
  AND (
    token = 'UguVtovwfAzVeCzOQS8wkubmjwxyFPX3n+3dLfS+Bo0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )