{
  "manageEntity": {
    "action": "Update",
    "entityId": "305122989",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbcf26e2f459a1bfdada508c72f5a4540065039b44633baaa8e51656f8257815b",
    "signature": "0xfb12e798a958c057d69e37561108a6fb3605f1c61511f035274e9ed8af4392a801d0d4298a396b299ea855a2ad964aa374aac127babf57eea834d84691102be61b",
    "signer": "0xA17F7ca5a0262aF50A57FFc2C2f304165deB7CC5",
    "userId": "305122989"
  }
}