{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64439",
    "entityType": "User",
    "nonce": "0xe7cb03600da922efdab2726844d12f36efdbbc6c788ae6a56d9287fd6b1ea5a3",
    "signature": "0x46eac58e7e1ca92f788b8b0e10773de11af853c55c823fdda547bda2b444088478b7a2f6e47d2c8bcc1cb3fb9c6dcf100bb187afeccaa9dc3f71aaa1adcf82751c",
    "signer": "0xf9ba94426403d01c2C5FD781aF89Af92AdE57ACe",
    "userId": "241240767"
  }
}