{
  "manageEntity": {
    "action": "Update",
    "entityId": "52254237",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f5a0bef2316e45181c67468cde974b4bb54cd0d8120fe27666bc6d49d5a7288",
    "signature": "0xf3e2cdecfc10e3bba6f9700d6df18e04bc97e6fdb5f96c14ba15e03a48717ddf30a11c1de7a1c1e04a639d705ae8e3c231ec9b015f178c316ae32cf0f490acfd1b",
    "signer": "0x8b043BD3b34D973FFb09C785561BA121147C670a",
    "userId": "52254237"
  }
}