{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97457",
    "entityType": "User",
    "nonce": "0x105205c86a018bde3685b95b300313146233320b1d06e6fb9243edd66c9bc1b7",
    "signature": "0x11910a45d623eee4308eac409fe5cd2cdb51129df29072cdc34b48e4eb8ffb01679b5d6f71622e95192fe735949037976e690e7c30ceb6d6d5e5ff1e8e7bac211c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}