{
  "manageEntity": {
    "action": "Update",
    "entityId": "219206868",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraquhi3beyi7bzbhje5bbqeojgdnd7rma5lgmqgryla755rzwpnkdq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":174013008},{\"type\":\"playlist\",\"playlist_id\":1061981970}]}}}",
    "nonce": "0x136b83cdcdb076711923018ca4ec77a0fff2216ae36bf8fd2bfa11f8974a88e0",
    "signature": "0x66d8912066ed0d92faf892a27f7fb9a80011f0ab0ab8d2f2678a8a090f2e138536707fb097a4daaa7c65f659756270f5a643eeecd7c14c262ec3b32e2fc905c21b",
    "signer": "0x0D118a31B964e68f3E82481bC1aeb97846819006",
    "userId": "219206868"
  }
}