{
  "manageEntity": {
    "action": "Update",
    "entityId": "242409814",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4e0bd63755b47f27df323a8e3cc862e4e300db10d70f7c0344c4ce04587af50e",
    "signature": "0x5dd37877562a177432e07957eeb7a607e1f8e051a16e3c4254f08d53412351dc240361833217de621f7e84a536fb2c72b80d034e599a53282ad3ec58b3324a641b",
    "signer": "0x8BD4a197850b688A4866D95c96b0bb7b19de4082",
    "userId": "242409814"
  }
}