{
  "manageEntity": {
    "action": "Update",
    "entityId": "85110313",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajyccrklezy7wiibmr4f2jib5hogohndw6mh6rih3d4smozw2i2qq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1723692671},{\"type\":\"playlist\",\"playlist_id\":1044029019},{\"type\":\"playlist\",\"playlist_id\":1600672014},{\"type\":\"playlist\",\"playlist_id\":344080503}]}}}",
    "nonce": "0x0df9921a8d66400006c2a0d02dea4ec383f9985366a94c5ac2f5d085eac8c21d",
    "signature": "0x4a064f6d8f0862b6ee716911fcb0c6c122f584743b451f97f7ecd30401bc0e7e3db7b3eca5a40c6757cf17955358fc7bd2d54391cde92d06ebc12ab23931a63c1b",
    "signer": "0x5170604ac4bada619EBcD61Fc11Cb5B4A21a6664",
    "userId": "85110313"
  }
}