{
  "manageEntity": {
    "action": "Update",
    "entityId": "650881271",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3f7bd3b1544d850362f650a442bef05db5b9fbc450c04c5663c142d8e7e5ad3c",
    "signature": "0x8aa1ae75312b6bbcff4c01b54e157eea484cb80bafb5e4ce81f1854ef14742f65224fd9c4347473b711a1caea06242079aaf68d128c373dcfe6f930e0a3fea661b",
    "signer": "0xCa114f5d06a67aF97a441395D4c7D0D9B354Fcb4",
    "userId": "650881271"
  }
}