{
  "manageEntity": {
    "action": "Update",
    "entityId": "429886403",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44270afcf870b0fc9224ab8a36b01c526c8284d788be7d77445e48ea99667e4e",
    "signature": "0x724313551c3ca64e943f3892764b72b4bc6a064772203d67ce98b7afa8a510780cc27079dcb3b4e48d3e9bea91d6ec9153efed94563b45ae562a4516a4fb004a1b",
    "signer": "0x8197b09A2fFB7f7deF0BA93abdc226f5E3cc1B0A",
    "userId": "429886403"
  }
}