{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10",
    "entityType": "User",
    "nonce": "0x0f5f338e5bd9d592954156d3c36625d6fe20eba36f47640f4d1d4ef25d8d94c4",
    "signature": "0x424f2f81dc1af0cbddec94daf47b7b6e81aaee8a6f48bd78c85301bf4793c61153c972ec51b6f0c46a8b765e01047b4221e1a1f6654a4e02a1cfd32ffb9a8fd41c",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}