{
  "manageEntity": {
    "action": "Update",
    "entityId": "382049609",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd395cf479020756a328d82c501edf549c3f9cf14abb9a6c09ef9e7d5e1c28e3d",
    "signature": "0x47d4905c4a97a9218b36fc5c0ee6ff2aca1466eebc38111b844bbd1fa37a711050e572a90ebe47a1e76031775ecf192e0a2748e47adab01e901b510927785be01c",
    "signer": "0x0381847B40E1daaC8534B7EC6A19b6D8CA64A56B",
    "userId": "382049609"
  }
}