{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe119d5b0c1afcb7c2737c5157a50cd2667b644e50297990e2320a2976b492859",
    "signature": "0x72f715df37c6a36f43efbd8a2e9939bc4213d1aa76778ebbaab7f51f8beac4e701c9d0478ea2baed4164ffb9cbb07c5f7b5fe88547dda23e17bb86613448d8e61b",
    "signer": "0x057bDB0458FD76561C0398Ca305bD6A53C33893E",
    "userId": "889486955"
  }
}