{
  "manageEntity": {
    "action": "Update",
    "entityId": "161223215",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbc4043cc5e15072bdaba85fa6a1ac82eeab25cc6f65cb7112709f6ccb7e9d72b",
    "signature": "0x3adea5489987e43db3a24b9caa6139f035066b6a84a398ed086e9fb65983cc972d6173fa219e14729e40129688cafb742a2f97e64c56bf396ae23ea7a185bc861c",
    "signer": "0x0017a20ec4F265018a6A8800dcEb4B26218F8931",
    "userId": "161223215"
  }
}