{
  "manageEntity": {
    "action": "Update",
    "entityId": "279730760",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x78ae92a225c381def0a4ccca6716105eac6e33b2ca2931d42f3860e7a3b1974e",
    "signature": "0x4b0ba7ff2aa9cbc1d136dc43fab20f928cccd9290412ed1505e03c2e7aecf409165a2b6f34bfa5887b9a9dbc6505ee9e0148d9e37d402e4b003a482df80fa6031b",
    "signer": "0x3CcDf5580dCb03a0425f7DCe6a10B25B4Cf46DaA",
    "userId": "279730760"
  }
}