{
  "manageEntity": {
    "action": "Update",
    "entityId": "545607016",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawbz6w2gdvaap6k4uo36ekfpiwbxlgm4uv7jpmjkwfzzo2lqoffkq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":71260667},{\"type\":\"playlist\",\"playlist_id\":758524292}]}}}",
    "nonce": "0xcd8b05b859e73c4e55bebbb3f67dbd4718e0a4270cbf6c2d373dd5e5ffbaa291",
    "signature": "0x90ea7168401650f2e35086599e74e4d8cde55212447c8f4bbe3188dbdbd5de4d07ce680db9eb0c22f233759ce77f9debde1bb2898278eeb7fe71183c2093b9a71c",
    "signer": "0xaB9c9D866876B7d33f01b1363339Ce0Dd23c623A",
    "userId": "545607016"
  }
}