{
  "manageEntity": {
    "action": "Update",
    "entityId": "356982132",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1a5a7ccae47eebf8a048b03757ca1a1bdeb4852501c552def7d12be8dcf0f151",
    "signature": "0x33ef5c9bd41c8af660f7e6079b7ffd9bf297c1befcf8db07bdab8d326fb520f32049a73b3e4c8f4772031b7a0d5f0a1afa1eb47087b3fa0cea780cd84f7948331b",
    "signer": "0x1cdFf70c3148938298C2f37555e69D65C18D364b",
    "userId": "356982132"
  }
}