{
  "manageEntity": {
    "action": "Update",
    "entityId": "137744695",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierav6woolsbgzhvxjyeekpj5nnvvwu6s6frhbsab2olreubtnsghmba\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1356007076},{\"type\":\"playlist\",\"playlist_id\":2031035983}]}}}",
    "nonce": "0xe5df26ef7e5f9c8d4caa3af9e4d7e6c2ae9af2b5b5e0a9593a955d651a856f8d",
    "signature": "0xc9c31aceb2aa63afad4d8fac80e6c6d20fed6af840e2ae80dd67efd0f79823e629d45c2dee564538f38674c971db3e75cb69857002a132e057d44790ed28b3621b",
    "signer": "0x997892Ba3dA104CdcAb8b169555d48E2884F6eC3",
    "userId": "137744695"
  }
}