{
  "manageEntity": {
    "action": "Update",
    "entityId": "986740871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c88e62dc46a1e09332b1c3f001b1638ddb02bc58cbc8890d1852465dcea0fe2",
    "signature": "0x163b7de0525f62ef109dd4ba2e4c26536810322735654256746f14fcff26ff5c729d247cff39caa922ac42d2efeea1c437f153d242ae02731c00e24abbcc7b5a1b",
    "signer": "0xd19d2E8872f63541eF1e0afE1c2F646DF9Fd5A38",
    "userId": "986740871"
  }
}