{
  "manageEntity": {
    "action": "Update",
    "entityId": "596792511",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf29e1204c25f4cbfb183ddc66d41903c2ed2fc315bd7eb81fde9b1ea55ba85d4",
    "signature": "0x0a6be5cfd63844db10c50d7777461cc23a80c890214106bbc91481782811064e3e8d622388188d00575908b1e16bd288b37e4ee7689df4869a7ee5c2b936bca21c",
    "signer": "0xC845532143b1d2fb62a072EdE6762995AdA842ac",
    "userId": "596792511"
  }
}