{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9712",
    "entityType": "User",
    "nonce": "0x5c0d7f05e6f787048c5f47f0d708e21a540973405e536a582b2d055b777934be",
    "signature": "0xfd730f332d32b059605896f3c5842edcc533ecf117ce90c9ed46e50329f612ca6a6e13c089f1b164aba4e0390cd30cb70dad086906a7c3db63047aa8db525dac1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}