{
  "manageEntity": {
    "action": "Update",
    "entityId": "640929433",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x02dcd04b5d3070c7e819be2dd7bdb24f4feaa99c8673a9ab1c025ef8af5cc70b",
    "signature": "0x8b9561c82a86f36c9785e3277b86ea206ff6fe5e8104e3cb28b98fc7acbcf3c23436a4d7dea05c9550e4380a27bee01959acde106b56b37b9fb931c0faa755b91b",
    "signer": "0x2EF4cc233Fa6017F37872f5513d6d080bCf9c8fc",
    "userId": "640929433"
  }
}