{
  "manageEntity": {
    "action": "Update",
    "entityId": "419000210",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c0b4f42224aaad36966288b2a70a0b6ec2765f221bee55745b677d336b9374e",
    "signature": "0xb1f65b22f78be7c420a5340f61c7b2a3f9077818d7e645a97935c79d6bdc493372e62578d4aa0e5ba0bedb2f9e50f67c9609eed8dfd29aa9f096e54e4cc6aba01b",
    "signer": "0xaE46c3AEC218EC7Af3a2a4EecAa5d42502Dc32Bc",
    "userId": "419000210"
  }
}