{
  "manageEntity": {
    "action": "Update",
    "entityId": "1142769960",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_contents\":[{\"metadata_timestamp\":0,\"timestamp\":1789001267,\"track_id\":964496589},{\"metadata_timestamp\":0,\"timestamp\":1789001368,\"track_id\":817755446},{\"metadata_timestamp\":0,\"timestamp\":1789001847,\"track_id\":802749676},{\"metadata_timestamp\":0,\"timestamp\":1789002941,\"track_id\":1838211709},{\"metadata_timestamp\":0,\"timestamp\":1789242808,\"track_id\":974589806},{\"metadata_timestamp\":0,\"timestamp\":1789242933,\"track_id\":2093701150},{\"metadata_timestamp\":0,\"timestamp\":1789243384,\"track_id\":477466799},{\"metadata_timestamp\":0,\"timestamp\":1789244203,\"track_id\":88398},{\"metadata_timestamp\":0,\"timestamp\":1790365120,\"track_id\":1971164536},{\"timestamp\":1790477211,\"track_id\":1467776422}]}}",
    "nonce": "1790477213376983415",
    "signature": "0x73b9952a9ea569bb3f4e1b7212eaa1ab85bc9353a9403727c8282b88ea42a3897638419846223f5788bfb5039b4644e286fe3a219818dff4110a6d05d7a2896c1c",
    "signer": "0xF1f4D1515EDE23445C949c6a8dBaE8a064153588",
    "userId": "199729601"
  }
}