{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302684342",
    "entityType": "User",
    "nonce": "0xd16921c57370c948bb08f801e0f73102cee34719594c540ba0bc3b29c1585393",
    "signature": "0x077b124c35db8b85055ff05a16ed85990256eef759a7357678a40cd352e7b3b771192b42374b6eac56f99ead724949d89a009da7eb16bfa14a384b08b4734efd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}