{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72971",
    "entityType": "User",
    "nonce": "0xa9430e6e0a8df939a6ee0ec92b106a3206c366eb68f09abc4275d735a4cfc3b2",
    "signature": "0x890b3e4e57bd4de156ed888b7799528980a2846cd225ffd232be2d66badeb30e6e9a48435ff751796738d3365aaae09bb4ce9a2603152c454a5451a4f8a3cc2f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}