{
  "manageEntity": {
    "action": "Update",
    "entityId": "469969290",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x612a7bc25d6ee2f283eaf00c0203016143ae21fa20e4703bf2a677bfee2fa072",
    "signature": "0x193770cc34e8987808de1448b93582e47367d6aae3a7f4282b9262ccb70d3881641bea550422c89719fe01382d2e4ef8128f2e353be65fa2f1b59068bcce263a1b",
    "signer": "0x2Db51188e987b8B4F8B8E853987b9950590AcEEb",
    "userId": "469969290"
  }
}