{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328915105",
    "entityType": "User",
    "nonce": "0x7ff19cf6d6a9d7bec6b350a9a470dff23770edd7f2ab49620b2cee862a13ffad",
    "signature": "0xf2370823f82823a83e42f083c9d3940739782de5c05b4f0ee8a8378bb4fd272d5bb0f09f9a87eefd7eba92f0567570834b5eb581a5fd8fcae4de4b0078df381d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}