{
  "manageEntity": {
    "action": "Update",
    "entityId": "159540364",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeab93cc8fb0226c631ae5d2baae74ed5392f3c719846f8475f9df7e35c49db1d",
    "signature": "0x88d846b506d09b5836932f604f86098a6ae533b1ae8e05c789401729c2050f2a7acbc790c00a574104b81777048142235c81f4a4cfafc2f37010e21f12d5abc21b",
    "signer": "0x2bbD320Cc6A99aa3286f71561c8B956DB3f1F815",
    "userId": "159540364"
  }
}