{
  "manageEntity": {
    "action": "Update",
    "entityId": "328137128",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x37d188db16845327abf8c118e6d4898e3b2f6ee6e264001f0aa9f82817363f96",
    "signature": "0x35b07774017478fa52af822c06c48af210875c044b3054bf9ef115ee8278696c1247630ca4f96b3ad30050a3b2a8e7dd9815f649c5e76f9e78f533a89ab2f0b41c",
    "signer": "0xFd5A42E0275eDCB36FAe835f86ed0Dc8BC2685F3",
    "userId": "328137128"
  }
}