{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707986",
    "entityType": "User",
    "nonce": "0x2bb05e556bf86c953ea8c2ef784a8d270d4cde5485d1e9851ac15ec202aaad86",
    "signature": "0x1cc44b779a3722ebf59029f5f5860c6b0336e0267b0c02d27a4cb0bee75f3ac42380344cc7daa80ac8ae198a87cad33e3de30a78cb01aca171ff20d1693bbedf1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}