{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23f1282d0149710d4c3792c50ccf950fb6dab60aa4b317a15bc2241c4e8b12e1",
    "signature": "0x131cff81373df61bc536165a1165d7ceffe114ab05c944e30e46fe73f0d508c67379b980bd1f3281bd8f3778f1ffc453b523a90553b218c105230773a41b4ad91c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}