{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb332f8c141082b7541fb3b4d5226235c7d890563b6e27149b43af2ea7971127c",
    "signature": "0xac8fda8e7b8f532b3a5170ac38d02d6170d913268dd2b6c6647e929b045f73b42c8de207b1f119298d7cd87794005ad9898d22db0e3e2ebe8912ef0a03f91ed31b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}