{
  "manageEntity": {
    "action": "Update",
    "entityId": "420884410",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1045c6486339ab386dc5614bd02023f32a030c74b24b2f4396d334fb2a0887d4",
    "signature": "0xaf9c610f35536b01eee2c04c1f217f4150b0c07c38f2069c9a2d205ac3880dbc79046f22f760ab10dfa181c6faccd4be52c79f7f1835fe5453c5e44671b62df11c",
    "signer": "0xfBe6C68905E1f4002b74750003Abb1000eB9eB3F",
    "userId": "420884410"
  }
}