UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ZezwxEth5scLDYVtFcW+nMVORjGLBWnBQPdgnUk2ulM=' 
WHERE 
  key_id = '893f6443b7deb4b7fe3e4489433b1590d4340c31f2e6157d6748802047e2d494' 
  AND (
    token = 'ZezwxEth5scLDYVtFcW+nMVORjGLBWnBQPdgnUk2ulM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )