{
  "manageEntity": {
    "action": "Update",
    "entityId": "174584140",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x795fcf0b7d2083babd8f40ff784f6f35a8a2b4f871a99ee7d0c8ee2d30a69bd8",
    "signature": "0xd5b80d3bb57ca93b23da6b88a37fa9fa1dc75fbbd940e45dfa64ee996377e9fe53619377ffc70b5849bfe2aa220bdafec4c4f12e90fd58dd92a9a6ef2176f17d1c",
    "signer": "0x449514246fd526058fC397A17E240721d9Dc0e87",
    "userId": "174584140"
  }
}