{
  "manageEntity": {
    "action": "Update",
    "entityId": "88341915",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe738c89f8faf0cc40a16508f871c402e5ed3a8799a5363ff24f53cd4f4524184",
    "signature": "0x1099b1dd5a14a2911d6430cf348b20bc71c5497b50ac2dc472b42cfc04bee80331aebab360542959034dca8eac8e50c724e4a42d62b893ce51f41666635f53a21b",
    "signer": "0x660EccEe4af05CF0B4F6cC14fF12a7062453560B",
    "userId": "88341915"
  }
}