{
  "manageEntity": {
    "action": "Update",
    "entityId": "918602404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x410501b722a26ebf11fdff2a4fbd34ae3948419de9066e991e082287138057de",
    "signature": "0x11b509f0448a744225b848f53d5c64609a44773bddc1f9512b6cfc2ecfceec0f120f9a9ee3962a4d5e8479505151973fb936ca012f7a5380252bf9e8abc5e4501b",
    "signer": "0x9e6Bc923c3B1A420BDAF7b6dd8E4a6Bc51f0DfFC",
    "userId": "918602404"
  }
}