{
  "manageEntity": {
    "action": "Update",
    "entityId": "358068750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb7b181bb325896e11bdadb4464ef609a61cd7c19be564ee58c7f34b48a8d00fe",
    "signature": "0x68fae58f35314d447db2ac681c9866c2507f9cb9c45a1ff3eb104c448aafa6815481a4b40894451de450e7bfae9e852cba7f2f77f0701ef4824a21505c7c473b1c",
    "signer": "0x452d8771039b3327310fb7c8F867d99b5765b6D1",
    "userId": "358068750"
  }
}