{
  "manageEntity": {
    "action": "Update",
    "entityId": "799571887",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarl4vqlh2teh2xef3g4e3yak7za7tpnu5l2qy56jlbls74tzgnovq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":442302854}]}}}",
    "nonce": "0xcbdca780b1a3614dbc7bacc254a728fd44bdc38578de9f167384f5c1cc9d5532",
    "signature": "0xb1be2b034d80bde45b46d40a2dea7964d8941bca010b8ffb524bee2d399a07412bb3e8155520f43a22f216fc5bb5374bacf8f3cf6f07de715c08860da3844ff01b",
    "signer": "0x75ACCD4160aaada206b4dCfA68E88187C9ba9A0b",
    "userId": "799571887"
  }
}