{
  "manageEntity": {
    "action": "Update",
    "entityId": "727950503",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieras4wvmtopczyiv2hkbf2mejvacc3yv2iw55edsy3rwb2bfldvfcya\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":7751},{\"type\":\"playlist\",\"playlist_id\":89487176},{\"type\":\"playlist\",\"playlist_id\":17169},{\"type\":\"playlist\",\"playlist_id\":80061}]}}}",
    "nonce": "0x6a61c0ad0a0852c38fd94553704937de73ecd39b7eb8c13c8fc0ccffe4af2e85",
    "signature": "0xdebe630452e11c7ce5e7d6adf54401168e1a3d1a8b6219296fa1563b19f2fcd07093f197fc54898cfb39b35619bc47acc87dbb6163f6bda7126facd7ba325d641b",
    "signer": "0x7Dc5480547abF67B7926d1c24AaB5d7BE7e0c965",
    "userId": "727950503"
  }
}