{
  "manageEntity": {
    "action": "Update",
    "entityId": "148833546",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x04129b5cb8d9fc89afc3b3e7c9d26703b2e277118a805c3d50bca28139e3e07f",
    "signature": "0xba5ba49dd5177f66627ecdb5fbbbb3c9154fa812f324265ce0ba809602e9f55d592b6e2700088981c6574568e9fd68fc462eaa3a547c395b4a1c0c740cebf3d11b",
    "signer": "0x1Dc530176d8cEdDF4109A57E7ABB24364cc79a3C",
    "userId": "148833546"
  }
}