{
  "manageEntity": {
    "action": "Update",
    "entityId": "994640922",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9555cef97893aa493ad45456bd27b2ff8a94e98a5254031057436355b45088a6",
    "signature": "0x3eff33c6a78e001c70e7a6cba7cd45706e9dc4057fdb76be25699ce14491c892634b614aa3cc057a37b845d665e81d85e82407568df6210206897c014512ad9a1c",
    "signer": "0xCd165d8cbB15a79fCaaF7b55b9daD9210f152d42",
    "userId": "994640922"
  }
}