{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307344",
    "entityType": "User",
    "nonce": "0x60f0a8c5a5c05065eabbfb3825d9874190220ba35bfd9170eecb555aa75359f5",
    "signature": "0xbd383e2a4d9d4a4be3cddd77e424d0dd5c2935a931e08e6a157597f60fe613f460baeee67589d73e1c1709d31aafd6617684b346bf94cbac545a99d15fcd791c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}