{
  "manageEntity": {
    "action": "Update",
    "entityId": "1891790",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraode5g7wpcekimurgtvw4nf7reg2qlgvkfr5nso3spwbthucvjjiq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1907309106},{\"type\":\"playlist\",\"playlist_id\":448969065},{\"type\":\"playlist\",\"playlist_id\":1844692619},{\"type\":\"playlist\",\"playlist_id\":670024499},{\"type\":\"playlist\",\"playlist_id\":1535256685},{\"type\":\"playlist\",\"playlist_id\":142479},{\"type\":\"playlist\",\"playlist_id\":635741911},{\"type\":\"playlist\",\"playlist_id\":702194395},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":142472},{\"type\":\"playlist\",\"playlist_id\":2117902033},{\"type\":\"playlist\",\"playlist_id\":1808220614}]}}}",
    "nonce": "0xb577898bad41d1b3c0a9c353d81d1824aff73bb8f918143a1db39863e5aca17e",
    "signature": "0x142ad27cdd5eaeb55570dd0c93515b08a2ad8c50263b4c087095b33b44abdb0b2dfcea7dd183258bcdf2c4b64d191ce01d0744cac988c42a4c26703f498684c51b",
    "signer": "0x19336C4BeaAfDD8D24476dE5a6C3524a935c400f",
    "userId": "1891790"
  }
}