{
  "manageEntity": {
    "action": "Update",
    "entityId": "472472299",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqbqv3v6rupiuvvmbz4vrhgx6ojhedd4cjrwrp73k6boj5a4maetq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":972}]}}}",
    "nonce": "0x9be006aa6d802c6cb2570eee6651e3f41bb13b9109b78e468b8a145c0df17bd8",
    "signature": "0x8cb4f9874d3cb46e8d2fa1f53dc70d301454ca5a8ff6ec8bdb25f0bbf30f26e8768f292cf5f5aca3c81fb308fb681c8b6f4012e2b2bb1a1c77a61c2a4748a6411c",
    "signer": "0x8A2eb611ED13B7Bc9CED13f52F7e15b1055eA0EC",
    "userId": "472472299"
  }
}