{
  "manageEntity": {
    "action": "Update",
    "entityId": "525334885",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierai67mdwgvaktbe5ydnhvgycfkiktmiigedotyvv627jnd7a76okza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1157401144},{\"type\":\"playlist\",\"playlist_id\":2075794000},{\"type\":\"playlist\",\"playlist_id\":218500594},{\"type\":\"playlist\",\"playlist_id\":1224797322},{\"type\":\"playlist\",\"playlist_id\":480110883},{\"type\":\"playlist\",\"playlist_id\":1602151386},{\"type\":\"playlist\",\"playlist_id\":2136522205}]}}}",
    "nonce": "0x28b0bcb2ee98e1aa5fa2c5820936deb7810d44d33885be9b76cd0de5e0b4bae0",
    "signature": "0x388139b8f97ccdc037d9541317dbc1872f867388a773278250ead576458a004f0811dcae72f059bb36107986a5b97338d55276c580fa6384d3d8dc9f92c82a1d1c",
    "signer": "0x1E097836b696E63387992B7402dCcEF7842F477a",
    "userId": "525334885"
  }
}