UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MMpzBtl6gxXpdVp1ePgDvnU525H3pMdOXXa7vqTC1Xs=' 
WHERE 
  key_id = '8a12e0b0e7eb9709e741e21353f1718f71af6d3bda641e2adb0a4cc092910623' 
  AND (
    token = 'MMpzBtl6gxXpdVp1ePgDvnU525H3pMdOXXa7vqTC1Xs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )