{
  "manageEntity": {
    "action": "Update",
    "entityId": "919790623",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x618979cae155c926b0e36a2de7d191c68d79f8c1f25b031cebf4a15b0633b237",
    "signature": "0xba820ee2406c36369a5de7e4083b3bb19bfeda68599ba0d37506977c074750d00419124fa646ff5176eca653e82cfc0c3643c7496baf8bde60a960c69c0f9a881c",
    "signer": "0x48F3a854821033806Ac6dc1D35aC1ACf84AdcA51",
    "userId": "919790623"
  }
}