{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301753",
    "entityType": "User",
    "nonce": "0x8658dcfc52fb0277f04fee6400b04ceebeca5e29f880b44ff3e9e089522f903c",
    "signature": "0x66f2cb5657caa1761b0a4b0e370367e0f11b7d788fba054f16f96aa535efcc0102930492c2167a373baf430b7604501d54f9706c693acab9e87c823ad2cce7d21c",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}