{
  "manageEntity": {
    "action": "Update",
    "entityId": "299339626",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera57cfzj3jdg3yxikgd24gcxpf76aqlak2bxzdc3i73uezjlk3j7ia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":300787445},{\"type\":\"playlist\",\"playlist_id\":29410742},{\"type\":\"playlist\",\"playlist_id\":275520215}]}}}",
    "nonce": "0x09293560c7f17812e2da8aa14cec4b19b9952031ea5e9a7bcf3ab11ca0cbe835",
    "signature": "0xd4d16d659626490e907d14b818cd43356cb408e4882371dc32dbd237cb0021691f7b6d116bea45d8d1b6924ac7516b514bd30573502642c6e0b8a738a602d70a1b",
    "signer": "0x8B88e5d2b2c544e566c23f8447d80C8AAdb156eb",
    "userId": "299339626"
  }
}