{
  "manageEntity": {
    "action": "Update",
    "entityId": "354908",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajyilsfxq7qjcubqwjjy4vlpikrxujivjj4c32fpzo7zljwspjoxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1288494577},{\"type\":\"playlist\",\"playlist_id\":1936117932},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":66758},{\"type\":\"playlist\",\"playlist_id\":139335},{\"type\":\"playlist\",\"playlist_id\":140294347},{\"type\":\"playlist\",\"playlist_id\":1428}]}}}",
    "nonce": "0x93dbb32326030d2e369caa8d0c51b7d8f881fbd5f53ee6721e9535ca18cf4bc1",
    "signature": "0xfc9e4cead4331e6b90741824a56a06ac8304ecfa64fbbf9b76a0b0fc80c1a51d1f4e9139241d454c8212d2205008ae0d6da5c033e622d6ccd6c255c42850e9b71c",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}