{
  "manageEntity": {
    "action": "Update",
    "entityId": "953308750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahjvqtnyvplq2osy6eufojopz3mna7dmq6vedkxxrd3pjlmh6m7ta\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1590887505}]}}}",
    "nonce": "0xb2f2dcc6238c61fb10b39f2d7e02d51c8d73e6d48e61efc18212bbbf505af7c8",
    "signature": "0xfd48aff084304f1e775557b352ccc849a0f86b3aba8ebc25713ca0392704b9674a7dd197c78dc3e6a7458e1989481fd79407a6b92ed8e5b470242a69dd32dfef1b",
    "signer": "0x1Cb865DdBA351F970220F715B0aC633F06fe38f7",
    "userId": "953308750"
  }
}