{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcc3cfb2c891d50d6d16bc524279efd7e7b9a6ff6126f6ea1720d1c0f0415b43f",
    "signature": "0x99009e13c0db583df147fce60404e9fae6d8830a248ace5b6c46c33a05b593871141464754717759a4767fc55d34a0e67d67d94b20c45a21ae9184afc60deac31c",
    "signer": "0x0030C898DcDEdBbEc850125698A96f86592eEDFd",
    "userId": "809843053"
  }
}