{
  "manageEntity": {
    "action": "Update",
    "entityId": "165663961",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa5ae1fd27720ce7112bdfecd026e6541f9e7e285844dacc551eaea9c52f49e7f",
    "signature": "0xcf928972c1a03d0367ea40386e179457774ad36b1650f4d0ae8a83ce03cbc80b40d1ab5614938d70af6bf95e477a895065fd0226b10405e3e511f7029d4f7b6e1b",
    "signer": "0xd8aC2321BE15582EaDaD83C073cE7036F1A77634",
    "userId": "165663961"
  }
}