{
  "manageEntity": {
    "action": "Update",
    "entityId": "434677441",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d2079cca93805ebc30a1d213b495908d40f29dd2eb56e8b00f520870e231b07",
    "signature": "0x714b5536e7878676039edad1369d0cdc7bf1eb93b0dca8e00d9b98fe6215832e27d334f77e66372b8c194cf44bd7daec62c4dbae0cfb878387b2bde8bf73e4d51b",
    "signer": "0xD55b9624F112bF851f35FE0dAA82310811433335",
    "userId": "434677441"
  }
}