{
  "manageEntity": {
    "action": "Update",
    "entityId": "952196459",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf5add8aedcd9e2672ec53edd6da7fd3e5e5937d6f41af0cd44e4afbaf78f5197",
    "signature": "0x90764babfc8b6bc51ca10c75b475302bbf2b7718f47181a514a2aa04b2f0e64c5605577f7b139eef97404ade003fde7d7e1632a90be3be7ea96c7a9700e5c9291c",
    "signer": "0x89715A6F0c23C84cE71166083899D25bE26BfBC1",
    "userId": "952196459"
  }
}