{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d05c64bd4258302e7f79b244f2e1a76ec6c8525529c26d38fd3e0ba319bc287",
    "signature": "0x8f8df4c36683dbc3579ecdd4b6b8747a2a8ae4ed89d31ad0f513c152deae05d35f9730ad3f0167c06200612e46475371b45bff945e952ef5eeba2838e2f6e6d01c",
    "signer": "0xB78d7296227dDEda0DadB887Ab45d759C42ae248",
    "userId": "54824378"
  }
}