{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347467",
    "entityType": "User",
    "nonce": "0x372fe705c3da41ffff571aa69f23ceb5935305edb876fd492bd8ddc7a129c638",
    "signature": "0xb0229f5a3221069480e5784bfb5dd4c3f56d79ceed879600a03a85902147afb51d7243982cf043516d33f72c66f962aba98ef44e535934f733202c3549a2b5d91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}