{
  "manageEntity": {
    "action": "Update",
    "entityId": "799343570",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x75b18581332415e3889367403d15d62afc8615dc8024ade4399c859864a81ff5",
    "signature": "0x9cedba8a44327bdda41b043db8841bf3546f98e1ed5812723452bf165e9a7d913d3e5ec49d1378ccf74626c31754bcb5d1865a83fe29e8cfe8b16dd5a97040821b",
    "signer": "0x9aFEe643DbEC07Ca709990bFFba18669AE933e81",
    "userId": "799343570"
  }
}