{
  "manageEntity": {
    "action": "Update",
    "entityId": "767216175",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67e23646bcf50862c54c7557e78666ae458228dcf8250c6a1f1bbd4c2c8ef688",
    "signature": "0xe218ad80ef6886fdd4d0cb8bd3137a31da72018a57dfdb3c5a68837ade519adb658e724ce7a77208eed025caed6a5f552de58513e76023a74f46b87241e104fe1c",
    "signer": "0x0c386B8dC8A28F528dfcebD831b0C1efAB4090bE",
    "userId": "767216175"
  }
}