{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37652",
    "entityType": "User",
    "nonce": "0x460b54b56d128dbffd0ce697c017a95149556e420e6277d592f30d3f52762ba1",
    "signature": "0xd0c309716ba29e98a83374ff6b01c23acaeef82ba8b94b950e3ea5c9d4f46cd352fb463a9dc53365977c0d56544b67b763c5929dd0bd0fa6cc09ab8f7a78b0aa1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}