{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357918",
    "entityType": "User",
    "nonce": "0x832ecbdf129ef8b74e4b5b90d27e6872f2e1e2da83595de1dbb436983c080be2",
    "signature": "0x748db36214de17cdad73e4c363a654c796e38dbc4ea80c32ac80f4ea5322b6c21bfca6a9b6080f3464565ae13dc5cb35e1f2dcd3e1368aad11005d13ba561a611c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}