{
  "manageEntity": {
    "action": "Update",
    "entityId": "359303546",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc4da30a3021cf6639e6c4a1f47793d3934b05b48b52bc7b058fd7e412d838ed5",
    "signature": "0xb939c896d3588601d7ef80dec9b099fd377f89fb4e48e621f953cb612f1dd3d41c6f4deea1db4f87000943d2a6ddb5224ece758dbf37d80da11f3e0cbdc2f5d81b",
    "signer": "0x649496D4Fad3F08291110883C2bB9dcd763CCcc2",
    "userId": "359303546"
  }
}