{
  "manageEntity": {
    "action": "Update",
    "entityId": "3636854",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierag5y6wf3ykbyxdhg7zvckex3y2mmnyvb4pvm35cioyxb3f75ganfq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1369700879},{\"type\":\"playlist\",\"playlist_id\":1136421125},{\"type\":\"playlist\",\"playlist_id\":734990616},{\"type\":\"playlist\",\"playlist_id\":697494018}]}}}",
    "nonce": "0x61dc2991c9cd8bb580fa2b107b6645998f8bd692033e81f49ec80469b0ce510f",
    "signature": "0xf01c58fd52321af3ec231a66796f55b82bca5b7a910bcd3f24143aac5bef14992930e955a420bdd2f90601ee96ff47bc876900b98f5953d59d98c267ff1a153e1b",
    "signer": "0x2e9d3CE541fF1290944eF388dE9759d77881dA4a",
    "userId": "3636854"
  }
}