{
  "manageEntity": {
    "action": "Update",
    "entityId": "823080489",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xce968c8399df6abc5723c50a3147be9bd4e3b3a2041aef8dd2ef926852422837",
    "signature": "0xf74647a6ca2b4dd82d12f7b2f8a619cba5f4a0864cc357d2a5a85019106d3a1233e648b8d9eaa89e464babe116c7ae72b60160b4d3742253e5e67a7957a68e3d1b",
    "signer": "0x5460753F7904f70Aa8a737ce24BE1dA1B70146C6",
    "userId": "823080489"
  }
}