{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe5a70e3083066e224a90f9c7138dcaeb53a324565b3b6acb4dec61e3231104fb",
    "signature": "0x2466ea05b69d90d301548b648a42397a889a3538c80c6b14b213e5354232a37c7862bbcc6702260b33ad3e2d97e2fac3bd6da9b72f4c566b7e74f6d92bd2593c1b",
    "signer": "0xa9F79B22c01cCa5D2eE21cA378895B1A2F9A8b80",
    "userId": "14380244"
  }
}