{
  "manageEntity": {
    "action": "Update",
    "entityId": "630604917",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1359f98d3b16f2694735f434bbf86c63c79569eb5a7ed47e2e1e7ffd1846f5e8",
    "signature": "0x46c120b2946b7b86580a67835158d7adb5cbf45711b6b89290eb73fd2e3ab19525bafe3a7c38b9cc8fa1e3d4a9b72f806edc490d3708f0b9e78b568c22566ad41c",
    "signer": "0xE2b3D9De60dfbA3eD9c35e4Df8882FE476B1d093",
    "userId": "630604917"
  }
}