{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0760e0c7bc6d882107ae57e551814883de0b806f8efad55ced8731e215d0dca7",
    "signature": "0xbc83b6e2e9cd983fc313efc7a1ddeea99a3f53362f62423344ca39c9890188a62b6c7558deb4dfd8bdd3cef151d6055251abb52820c2b7cb618cdbf4a7aaed461c",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}