{
  "manageEntity": {
    "action": "Update",
    "entityId": "745060719",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdfabc732b3e7b220368cdaab62f96195e12793e0019b1f0f41650f0ea4623763",
    "signature": "0x93cb48fdc79c5160a72e236d09e2508f8b5b418596c609de396383f5a175b20838e5d9b00134b9c6e0e8f55b2d3fce066db08f2e97f59d26def3cce59d8bb0151c",
    "signer": "0x0635b2A4a4cC43C41C76863d69F8c916408F4D2b",
    "userId": "745060719"
  }
}