{
  "manageEntity": {
    "action": "Update",
    "entityId": "319177310",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb61749b3738e37e8d116dd12079075137bed524713273ab5e465f9a9749feab8",
    "signature": "0x5d1048564906c8f5bf9b7c328cf38925ff4769fbe24c75d37496b4fb0f63ac772d1921d4092f1be354fd252670c51c34a74bf92a8b5fc84628c052f63a5a59d81c",
    "signer": "0x96e9FcB3bcf2B4B9B7347B5ba96A6a8813527DE8",
    "userId": "319177310"
  }
}