{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0x6a4b4e0b7ab9c4ec9ceb642d606ffad673a9e6d4cbfeefbd4807990fbcf34644",
    "signature": "0x700a6aed78e232d3f69b25fb5082f02bd83bcb9fbce39515ea312dedc0ad28280a49bb06b6a627525f70613ab7cb676c6d85c93ecb1dcc0aa90347212a9e2c1e1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}