{
  "manageEntity": {
    "action": "Update",
    "entityId": "550138957",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5wvorktk6xijsbay2jciuhy5wxafc5ufcrqko26r3afq4bpeuspa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2114341531},{\"type\":\"playlist\",\"playlist_id\":1872571100},{\"type\":\"playlist\",\"playlist_id\":1329140169},{\"type\":\"playlist\",\"playlist_id\":867702447},{\"type\":\"playlist\",\"playlist_id\":433705918},{\"type\":\"playlist\",\"playlist_id\":1808869503},{\"type\":\"playlist\",\"playlist_id\":878910238},{\"type\":\"playlist\",\"playlist_id\":726773545}]}}}",
    "nonce": "0xa4deb8c452b6a00b2463707b526620b0425ae5f354d2eb942b10f19e8301cff5",
    "signature": "0xbfa31e601da948771068ad6aad0239250efef9018b98975d71e79d8f46dd64e112855a5ea3447f12962fc62a6cb97b8d4e477a0dcc8575dc203fd1baf070b4951c",
    "signer": "0x89de1a45782C6F6cf99058C1C0104bCC44c2f489",
    "userId": "550138957"
  }
}