{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326049483",
    "entityType": "User",
    "nonce": "0x3b9d3af7417191679860d792c5c677531123476c05b896d48a8f832dcd717113",
    "signature": "0x60f34d312a6dfaf1f46aa557910bf4bcbcb651c8946e323ead32ee28dda8fef818dd4ff86c7bd81b5aa26924bebea967f021da020e7b3ead30da36c9c92fc1131b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}