{
  "manageEntity": {
    "action": "Update",
    "entityId": "994701593",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x91f514d074cafafcfabbf78a196cf986439f7eca4ace43c7f8b045588233eaba",
    "signature": "0xd1f9d18f5c02a7053af125b116132f8ecec32454e5a9b9a7585fc425b987e67d46fafc42cb5547df13c2fd7ef5a2103155bfd3f08c8389c6dbc8b96d3f4d33481c",
    "signer": "0x252D7E188Ff44498D1e2D41fFF532bFe1bdffa2c",
    "userId": "994701593"
  }
}