{
  "manageEntity": {
    "action": "Update",
    "entityId": "533069671",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xab055340b5e75ab2923fe53ed40e56c4353d73f5c1344bdaf27e0933f0425800",
    "signature": "0x9708a2971f8abcbe5cb5ba5d9dc16d5cef71beb378fd23218fd84e606a4734de400cdec68b5097cc0f71d74d151df9f9bab3b5d7efa87dce223edf754473c7991b",
    "signer": "0xa1cB707a6e6c37F991927639d7aD8433D9024F1c",
    "userId": "533069671"
  }
}