{
  "manageEntity": {
    "action": "Update",
    "entityId": "508931608",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1cf2a1d17d3cd0a0131371b654ad1854464babefbba646fad7a37a9ba6c12c1",
    "signature": "0x29e723fcee43de167fce20cd2e98d136a7b3313d35f8714c39ac1e7bd428ed9433f55998d1e160729a94b61469222a66c1fada8a4d9de22898cea479c1e342851b",
    "signer": "0x69163Aed5B32EC7f6C8a1e4aDEd7fD7E298F9521",
    "userId": "508931608"
  }
}