{
  "manageEntity": {
    "action": "Update",
    "entityId": "284338928",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf5c6e7dc1d707eb19e3cbba1593e575c4ca6c609a03d00fe11ade90f5a7d4afa",
    "signature": "0xf549038423f6674eb5d9442a6706ced3d85810b2853fe3a319dc2324914f9fe650269996f1f0dec6750b185dd10caaac149f9579f4a99567766d5346888e55661b",
    "signer": "0x6B8f1fA543A03f3fE0C21b80d7f9d0eE451357c7",
    "userId": "284338928"
  }
}