{
  "manageEntity": {
    "action": "Update",
    "entityId": "839233202",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragboa53oyra57zpm62fenvwztmhkfhafj6a5pnc2om7u3odawm44a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":959510088},{\"type\":\"playlist\",\"playlist_id\":329800787}]}}}",
    "nonce": "0x680cd02729eba7f27d8e1ee8d67de885bf89326fe7a03889e11354c7e459c883",
    "signature": "0xb8f3394211f3a79cb23f5c4ce2cd08330d0d5eb4935fe642dbba88c88a32d3ff1a0510d93ed8d5a31060bf1b69fc54ae0659344dfe4550a45c3efd465904a8781b",
    "signer": "0x648B4387a313b9F9b1b70bcf05cB555C22F27B78",
    "userId": "839233202"
  }
}