{
  "manageEntity": {
    "action": "Update",
    "entityId": "560630042",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1359b8509a221d1f1256a51b4e848243416f0398ba7c76307e87406dcd2ab8e9",
    "signature": "0x75605a9043699e3f7812ffd5779745ea51dc097787a97205f450ea94b37809a8195259bdf37c5462299a2c79a06ec4096e5092c16f43ef731d19baa3c0dab9671b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}