{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41392",
    "entityType": "User",
    "nonce": "0x72b0770d63992d9f031eed24aabebb355d964214ab250aa5e1ae9c7bcf93905f",
    "signature": "0xb04b8c5f17557ebd5ad2ddf6037d8137a05ea1fb886fa2107d457498d715d496108f94d2d9ee35bd2e0dcc7e13d7e73e40557f34217fb68d431f920d2fe39e851b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}