{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "612269002",
    "entityType": "User",
    "nonce": "0x3b945243f3cba051c75c8449460716e27502803c4a6cb6b4dd13a088bf92a212",
    "signature": "0xc2d5cd577af29b5a87db6ea9c49cb23b97e0929219031b18af9cdfe5321fa4cf75e97dac164207291a1703b01259f0878dc2910c6d397069199b7de327b47c2a1c",
    "signer": "0x2cF0f0aadB8f92D146230bDe70a966edbeb8b8a1",
    "userId": "361460817"
  }
}