{
  "manageEntity": {
    "action": "Update",
    "entityId": "851914601",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauw6jld7i4zv5vluptqwyav5euthnp6lcqg4bajwju7nu3abamvla\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":957430706},{\"type\":\"playlist\",\"playlist_id\":73329878},{\"type\":\"playlist\",\"playlist_id\":128946445},{\"type\":\"playlist\",\"playlist_id\":893733707},{\"type\":\"playlist\",\"playlist_id\":396355389},{\"type\":\"playlist\",\"playlist_id\":1812968472}]}}}",
    "nonce": "0x29a88f33002485bfdedd9974774c478cc874d7e181610f54da4f15254eb2dc91",
    "signature": "0xecfe443c111f5262cf39752eabae21b1361381483f7ac8d9d6551dfe7000db181034beabcd66aec2cba4bc112a1cc67219d10b758049a7ac2af0916155471c951b",
    "signer": "0x9a95E87e27E17D9A64b59102A5D563d705e460e6",
    "userId": "851914601"
  }
}