{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x82a4cf8948dc5dc77602aa8ae14e2b9e08f20914630d6424100aa27f2863e9ca",
    "signature": "0xbda8b1888711d65bf6ae582b73ce5f178acd2bbaa183faba3ccea65cd77d5d400d7c54b07e43ddd897fcccc19c6ef160ac210d9ed891f785d92b10d76e26fd4a1b",
    "signer": "0xAbB7565763522cA8f288760b3a514516854fbd83",
    "userId": "445116910"
  }
}