{
  "manageEntity": {
    "action": "Update",
    "entityId": "103076055",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragfhj4mqua4jeh7hy7mdhyipgbjfnxttuywmg64uwcfgdqeh3d7pq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1509709691},{\"type\":\"playlist\",\"playlist_id\":34664201},{\"type\":\"playlist\",\"playlist_id\":537912159},{\"type\":\"playlist\",\"playlist_id\":37804480},{\"type\":\"playlist\",\"playlist_id\":1731635911}]}}}",
    "nonce": "0x9dfbb5ff04de0d9f85b14229b7d28aafcd76b6b9c6192b6dfe9c3841dcd32ccc",
    "signature": "0x54a3912ec41509bb20ba7b8aaef0e8c83f32747174052a4715a52a95bd60d6191705e9e6ec5dba4b8852935b5364884d2c8ea52ad70bfdb030e58ee21bd3541c1b",
    "signer": "0xA2a96aeb1cc4DA90EB01C12046d16159737f9AF1",
    "userId": "103076055"
  }
}