{
  "manageEntity": {
    "action": "Update",
    "entityId": "335034",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3971a97ce8795ab1b63f09d9d1f4934a6d9485a1e7c98d12338a7b91e867a106",
    "signature": "0xa6521cfa4eb14a7dd2ae58760b8b56c7de6ac9e83650aac778118b03408123d5199ac9b7bdd34c29efbf9e9fcd07983fd7eb3fe2aabf0d2fdd4b6d1530fe86d61b",
    "signer": "0x3df4d110c869A8eCe0676368757ab6A621a6A3D8",
    "userId": "335034"
  }
}