{
  "manageEntity": {
    "action": "Update",
    "entityId": "863774823",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x73407bf857eb7cb8a72e4ba4960f477783fe42c91a4341512932df697caabd15",
    "signature": "0xcc3bd8eaebbdd4d756cbc60998ba4d3a0a595bafdd620b4b7ff4df743ec471d801f47d4a6e5c822b9f5178ffd139434051e138a9da54dd7a6a11722c0d19bf171b",
    "signer": "0x6bE1750982C097e426E546542683fb42BD1698F1",
    "userId": "863774823"
  }
}