{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd993d0833d557433110000cef52bc2f4e620b22810fc7f38e6b012fd6aa32661",
    "signature": "0x4d1214942f5f5fb1a3c8408ea19b2f9cb7e5321ccac2ae258cfda75ad0d2d5c222e241d0f618c13531e98faea884c5ae83444ddd717621f285295891842528da1c",
    "signer": "0x70EAd9e78f2bDA62592Df544b32FA36e4Ae4aF5F",
    "userId": "308333256"
  }
}