{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2875b0e1a2da64eeb45de639ca7ffc923ab7c92798fbb1e0c3fb56b3e239955e",
    "signature": "0xdd2a6e8d7d31796c6e94b9041d3d64318acc64ce80d61dd0573592a27211aa705174c76e9ede50060b74fd2b37d1fe9574cea0b1aaaa1a41fd76c0cfc9bf96c91c",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}