{
  "manageEntity": {
    "action": "Update",
    "entityId": "583264378",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieralpesocagmtumi4ho7vn3etdpj3hagpzeldlwl5zqjx6tvxp2xmaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":643838207},{\"type\":\"playlist\",\"playlist_id\":475892783},{\"type\":\"playlist\",\"playlist_id\":372817530},{\"type\":\"playlist\",\"playlist_id\":646366193}]}}}",
    "nonce": "0xdf96eddc08d064a0c38ac65645ebe66dbda5b5dfa1b7b693a47fdf4a6fca2eb5",
    "signature": "0x562421ae82ab135647d758b7bedbbd6ddcd843fe3038fbe43ab95c71d36119d24ae1fbc5d24aae870e1caf486bec1c4bf3c45992ef74ae5193ea917f9a28d6c21c",
    "signer": "0xCC0d2E17031Bb2a4822bc4c54ABE3a667ef3D494",
    "userId": "583264378"
  }
}