{
  "manageEntity": {
    "action": "Update",
    "entityId": "179777073",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82076a02e034619cbe8f503ef5d30d70996f13813b7e7e7efdeae19c09816e54",
    "signature": "0x8ac697fd9ef47e6df867bcbe12f239fa754508c00a19bd4f709f155be2f5623c74a43a352be734a0569d35599464e7218c78d9f36b7996a7e4b02699e53049ca1c",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}