{
  "manageEntity": {
    "action": "Update",
    "entityId": "191858079",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d9e233fa186561b95e7d068c66b1199171ebccd4d525e5257eec67e6839e63a",
    "signature": "0x4e93129d8ace82647e6f7ef571ce581266fef3b080874c250a5b19cacdf7211b0914a72d54748740d8be3aef92e5658869fd002c9b2d61ff9c462e8f0e7988dd1c",
    "signer": "0xA6c15Ea9c3023d20A788742175fCE7EAa021F08C",
    "userId": "191858079"
  }
}