{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844554896",
    "entityType": "User",
    "nonce": "0xbd9158295d8b97abcf5e212091c63d26df2c5e5437803b4090a0c4ffc67aa524",
    "signature": "0xe0674a4a1e1bd14cb8500c81303b2093ba77d3b40e3ed57d0e856bdaa43cdd4565438340d6baa793e664e94f7a4489d9000f51a1152af34df8c432aa9141c9c71b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}