{
  "manageEntity": {
    "action": "Update",
    "entityId": "358650455",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa58300e7670e611cd6e42121de59da3ad94577fbd96172c9b54d472f6b276126",
    "signature": "0x87996c95e25599283edd507261f1e83f2341af9eb55e082f889985cfc7af147b2382f500ae4f3e1a3435c6e7812b6412281a7da065f2d3b4cc6392666ed441b51b",
    "signer": "0xd9A54F5D27953D2dCc7321618F25664424365fF3",
    "userId": "358650455"
  }
}