{
  "manageEntity": {
    "action": "Update",
    "entityId": "636373789",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierav7ck4depy2folifbkh4fwktast4afgxhelsxqce6dusb6bamwacq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":77101},{\"type\":\"playlist\",\"playlist_id\":1772262673},{\"type\":\"playlist\",\"playlist_id\":1409463636}]}}}",
    "nonce": "0x1e65364a7fb61b0ee878abae91903e51f60486111faaa689e8819ce0aaedc036",
    "signature": "0x97c8a28c5628a0440ec2c01db9fba942d05b3937b065148d2f0b5fbd9446ca796e04519556f585310d970015d8ad317a1268b48ad0899faf940747e0c2f657911b",
    "signer": "0xA58E9DB71bd7769eD0ce2E3B8570c246C1157776",
    "userId": "636373789"
  }
}