{
  "manageEntity": {
    "action": "Update",
    "entityId": "561546129",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcd31442d3257cba7e6ea9bbe2188311569523a6070212ffff051d28975cad6b0",
    "signature": "0x7486aab67e8c1b827c57a4d9f294807f4ccc3df6937e10ac3a59388f432dc965777883e46c81f7b8ca420c98a43c8f0363932d5aeb82d2f502371cf395f8efc11b",
    "signer": "0x35d43F8F2BDF52629f041a6f8E24d71098998fd4",
    "userId": "561546129"
  }
}