{
  "manageEntity": {
    "action": "Update",
    "entityId": "863925144",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc35538942ea6e8495055269c5a4784f8de9e601100ee25502e4676ffc6d9170b",
    "signature": "0xbe4d1fddf0c7e4c5ab1f90c1be0c28b822ce9d347da3490f3fb8f2929b817e8d25de63ce87f8d582d003e5784e34ab52233750e32cc89ea0dda118aa3a73a9f51b",
    "signer": "0xb63A62F1972580dcd51d6A7Ca3a7d5BFE1f4bCEd",
    "userId": "863925144"
  }
}