{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf748d8bf43ba81e7c0fcc5674bd1f8a296a9ea637203ece0f0e5b2460113f160",
    "signature": "0x54792a91f14c507383414e7a891f65f5a10f1a8e1e17239d223229865a5d8216409fc36e89b4c3e505a256d4fecdb432abeb8dbff13b888d0d422916eeef79d71b",
    "signer": "0x608aAC7ce3aF4e2fdc1E29090C81A5cf7618eDD7",
    "userId": "233845580"
  }
}