{
  "manageEntity": {
    "action": "Update",
    "entityId": "814776560",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x743067c32756095164c479b98b9df1bb1eb0e223c84ccd28f2127c336f8eb004",
    "signature": "0xb038454031f5532d13e56e3be19d2dd93c8e2904b8fb60aee40a7f96d3381ae936b38355498face8a49700940b5c8b69f01ebf4c49b908dceaa839d5a1898ea81c",
    "signer": "0x2D95ae7B07b469FC2B440245F94936100bac734F",
    "userId": "814776560"
  }
}