{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x54af044f57e237a15e43d63e9fe9f8ba2efee1c1e6b23f7fe31b9aa6868bcc48",
    "signature": "0x15a990d3ada16a0b46c34c9a9d56b5dee81f0d458ff752b208d7d2c05d7ce8f107b9b97c26941da82ba632be794095fef068ed6ab6d3b31ef76c023efcc996a51b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}