{
  "manageEntity": {
    "action": "Update",
    "entityId": "194963084",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1331448680d1217d4df0f0d315e6d3d709357dfc10ae094ca3f67b24d6713986",
    "signature": "0xc9691a4e1ceb82d85b0faa931e5d39c1f92ab5e6da84b78f462e0e7fb600bb2654386022d919b104194a60df3240ea3ba05885f4f427156339fecdb04b0f167a1c",
    "signer": "0x52C54744FeC93B156A460Db7FccF10e22b6FEdf0",
    "userId": "194963084"
  }
}