{
  "manageEntity": {
    "action": "Update",
    "entityId": "622722130",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraj2otf2qlgeeseesylasp7n5zwywxutlcr3hi2ozgyyuiwxdqerfa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":918184430},{\"type\":\"playlist\",\"playlist_id\":139342656},{\"type\":\"playlist\",\"playlist_id\":304580376},{\"type\":\"playlist\",\"playlist_id\":1585194387}]}}}",
    "nonce": "0x8d133dbc49fb9f2c25857a5a465c6ad838c3ac4a2ece4def7729df6319ae7a41",
    "signature": "0x5d28620a3d04ed9cfeda32a00c889befcb6dfb370b2c8f8cbe55cad58e4f1469032728c647863149d7dc783212d4257e145798b514f1ffdebe8757ce712f7f6c1b",
    "signer": "0x9861bBD8DaBC2D1197dB75a1309CcDdD9Dd03354",
    "userId": "622722130"
  }
}