UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MRWInvXRzMcqx+LqZmxXwCPt8fagFw6+XLW7mRbUbCY=' 
WHERE 
  key_id = '2c2ff523ec1a6406255ebaeb69a2844f0b2eef595d63bc4cf9abedef1b9f97ef' 
  AND (
    token = 'MRWInvXRzMcqx+LqZmxXwCPt8fagFw6+XLW7mRbUbCY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )