{
  "manageEntity": {
    "action": "Update",
    "entityId": "953219535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2yzqb6jtj36gxv6fvssdjdxcvyssuyswlmuoncmtvrlcdtukp2xa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2102334422},{\"type\":\"playlist\",\"playlist_id\":1358587117}]}}}",
    "nonce": "0x90b8ed9a98b35580a47e78f9072d9e6f8386c92eb5121c5c02d0bfdf37334c72",
    "signature": "0x78fb2e75e2eb4af3949db4d279f60b3dfe8fb1e712aee578621b0081c84e4ba26c80024d0d8d22a15effdd9efc655234db8ed2c97ae5807f639941ce545448311b",
    "signer": "0x165ac7dD4D63a6A37cBa24549d0c710442e9b68b",
    "userId": "953219535"
  }
}