{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3709",
    "entityType": "User",
    "nonce": "0x165651b2146ba1194b01f96ea5018b1fd6347d99d9ac4c1c621bf84e7e5a7317",
    "signature": "0x7e4a0eb9e3a4917d21dfff75861242facc9f500bb36927155dd825ea0dc4825c52d892581301d790cdecb8dc1e25a328027e5016a15317d461a9a7cd34fe0b2f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}