{
  "manageEntity": {
    "action": "Update",
    "entityId": "74313884",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x147b01202888134e5e6e586b1cad70bafaddb1a977820c9a23f9f24ccbeba93a",
    "signature": "0xe59ed01ff05a45290579f76af970aa4f609f9761d4559b554e5abd49a4fb971c5e07a022607be591b288da92bd761d2dadfff867bf0ce5b550a43b632e6268d51b",
    "signer": "0x802f183850238c97b952417908ac937c96BFB1a9",
    "userId": "74313884"
  }
}