{
  "manageEntity": {
    "action": "Update",
    "entityId": "841195287",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9dcde51ebdb5f9a7eaeb5c0876fc2c415202cbc031766e2117498337ed436bbf",
    "signature": "0x473ff2ba8a760ab9fa256a370ed784a68646c2133822faf8e46db4cea43889a509cf7bf0d0b890be7d4087d1c11ca8e601f1ff9f20a617b4e3a8729827529b4f1b",
    "signer": "0x6357f7Fd9495F9Da96b38682398cA12fFA4bf604",
    "userId": "841195287"
  }
}