{
  "manageEntity": {
    "action": "Update",
    "entityId": "545607016",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieracx3dedm33cdapksrjch2z6c6mq3rushhlr2sdvegdto6wyfkddfq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":71260667},{\"type\":\"playlist\",\"playlist_id\":10482068}]}}}",
    "nonce": "0x67dbe046b95b5fe36d5027cfc45e25ff557a28e98861d196444a41693d5dff33",
    "signature": "0x016145e1c9829d81955a78dff79277b82d1a6b98c75a3fd8b67b99ac3c06649178e1894d91b9e6744741ddf17a34c5118c6a9818eccdf1d81467eec732fd16ff1b",
    "signer": "0xaB9c9D866876B7d33f01b1363339Ce0Dd23c623A",
    "userId": "545607016"
  }
}