{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311917",
    "entityType": "User",
    "nonce": "0xaf8ff514437ee104ebe38aaf5e690711e49a09805fdedf4816e1946ad86a0ac2",
    "signature": "0xa1d1eee985e93f56780f8f24e8df852269a302de3a911ffb3e4cc171acba8f5d2fcfb23d1bc8332f84f273352cc70cfee08742c6a573e6db4b04ee5f880b58001c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}