{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe0390b112fef4232dc49162322fc8136b35796ea807c51a6b89493e315ba0a3e",
    "signature": "0xad0293f599555d0259519127b4226e82a93089b3f9c6dca1df6284c9df340c830f802f40adf7b93366c2c76e244a332ce839d6ab1bb52d2481d78c1e13594b971b",
    "signer": "0x925ca44Aa97a1e9E3Fd4F3B36F970736B23881e8",
    "userId": "226373962"
  }
}