{
  "manageEntity": {
    "action": "Update",
    "entityId": "936213876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7d50fb9b48cacbd7182ece1ab9d2c4a0525229fb11c5fd6f03e8183b13078c60",
    "signature": "0xb3a8f61495b86104d88e00ad273aada266480ef63d7c4a2acfd7c1c641eb11e155708b5533b97d179c71dae0d5c99c04c771b56f99c02c8ecff217be762e6dc81b",
    "signer": "0xdbb5FeAE65617ed3C8616A66B1152898647cb83F",
    "userId": "936213876"
  }
}