{
  "manageEntity": {
    "action": "Update",
    "entityId": "863212457",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa66111d994869cb84599d942c8d31e2bfc22eed2b0edda420c233a992ebac4bf",
    "signature": "0x7f92843d0bd35a1d948719eadbc72f48a38c43bf1b4cc0c14045ae00fdd0395f22c32ed29e7442cf26249d392fe1fb18766bfac4d689db7ad4767d50e68dc4601c",
    "signer": "0x29Ff1645fe139feAD6BE7F56CD25C402Db9d4dB4",
    "userId": "863212457"
  }
}