{
  "manageEntity": {
    "action": "Update",
    "entityId": "834540087",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa86951db53064f0de9f3bfc43c962502c480823569d7d2420d3ebc39d79637f3",
    "signature": "0x536d426cd57474b7c4a339f12b41a47baeb49b177529f770e393cb0c35c1a64d28a10c189859ec9a31df67b31b3479b59d57c6a91191d0bf6244f808b186b79e1c",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}