{
  "manageEntity": {
    "action": "Update",
    "entityId": "863229353",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf6eedd7e2bffe50aac63272ce626b3f0eedf835b0ea5153c56e5e44c53abade6",
    "signature": "0xbca6f4dcf30a502852a36eb06a433a576afadb6d3d734e26130452c5257269d4221fad262aa587680668e60560fc92874193599573b750e8cc3fd3efdbc7eca61b",
    "signer": "0x8a42274408C388c1e10cBA30c85e55DB26A031B8",
    "userId": "863229353"
  }
}