{
  "manageEntity": {
    "action": "Update",
    "entityId": "668262132",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf345c7df7815077d6267bba4cfdda133839f52da36d373c1d8ab15c9a77db643",
    "signature": "0x23d6aec61354741b2c05eadcfdd8ec99a1cafc4e5b12a097c38cff0816771fab6535aba12ad48a5438938fff167fb3374102ceb84776e7657790fa9ee6c5f9f41c",
    "signer": "0x1771280501AaBc026030d3f8dE3A38A03C1664BA",
    "userId": "668262132"
  }
}