{
  "manageEntity": {
    "action": "Update",
    "entityId": "108308523",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c8bf2d558333e989d14ea04a0c106610e53822f13266df3246c2484e4cfbbef",
    "signature": "0xe40fdf152191f54ae95fcfb98c7ec39f79a8df839626bd1a6351fccf87ebc00e7f54b67bd2b86bec88fedaddd8806cb59dc6a9b296ef5b3f7d203a4842c84c0b1b",
    "signer": "0xe862752d5754CA4034035D0c731bA7De15D49Ff5",
    "userId": "108308523"
  }
}