{
  "manageEntity": {
    "action": "Update",
    "entityId": "223794534",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3047153c85892342268d5dc5413245b9f3fa9b56de9b48ef529bff9beac5b664",
    "signature": "0x25502c7f0908870d604291ed71e78b8c1ad5bd10d4b6843ffa83820db162007820c8d71d9577de67cb9a32c6f60573857517d5362c5368cffbae8708af39c2281b",
    "signer": "0x28c59E4618Ef44C82951D8a6d832b5997615D07A",
    "userId": "223794534"
  }
}