{
  "manageEntity": {
    "action": "Update",
    "entityId": "326288799",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2787f087dd4548e0e7cd6cb0da63b0fa459cd53e96a60332786108eaf4f571f6",
    "signature": "0xfde3ac21a5c309bca3725765eb88fed54a5cf2072b3b20983ec1fd54d68f6c77099e6b821b0fc26bdec2911c47878daaf2ba1ab9b9ff9f89a621cf679ca39e0d1b",
    "signer": "0xe0fE7a9110fd6C13915A5293B4F7dBEcC1e08C77",
    "userId": "326288799"
  }
}