{
  "manageEntity": {
    "action": "Update",
    "entityId": "324170795",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x04f70853d80ff6d9a692802b47266d2f0f7ed4458c126c5200acc26481e6805e",
    "signature": "0x9304febc3563f295084021367a7bde324e38df059442c4a25fe2370b89a357542a0bc3c8dbd9c2ff14e2f717aba7ffcd5e78cfbae0f74895061da7f988d86c201c",
    "signer": "0x7212FC9b44b2BB370D62E8b98dA3f7D74c307696",
    "userId": "324170795"
  }
}