{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592353919",
    "entityType": "User",
    "nonce": "0x4eb90cc32b7f2eff345cbd6d7fb200fbfdbfad9d8e7c86d61dcff9ba44b67178",
    "signature": "0x823b91e4386e81428ebf7cbed434255ba4b8ce0eccd3d04bdd5e9f9d2955783866fb29e7de3e3b854f8d7d0983605d275d408db1ea6e6ef2921a2a2f70a12c2a1b",
    "signer": "0x39b9f428c41489717f21E4BD8047647B53735281",
    "userId": "980027720"
  }
}