{
  "manageEntity": {
    "action": "Update",
    "entityId": "477934274",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasi4n5p3zqdkby4hluvu7katuqno2gcn5ccwumre47fgwme5vayda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1045320063},{\"type\":\"playlist\",\"playlist_id\":1207000386}]}}}",
    "nonce": "0xf6b95afc9b9a4577b0058efc92688def8c5144852919edf5028e84d78f87a0ca",
    "signature": "0xc5ebdeecc0407732d5071f1bae12650ea32bfed7dddefb8ba19c8a0a2e0a0aeb55f30ac14ea7dc106dff158dbbca890407779dae8d322dbac9f59fb4bd7fe3171c",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}