{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0xdc603e1894b10546fe58df0c10b02cdb0e407abfe3d7eba833ccdcc11966263a",
    "signature": "0x62d531754854b0f3527165ddfe576fe2123c05159f479b49bc85c6d4d8e85e852f4b53f85b218cca13500fcde70380587d9d070ca18749d87c74da5c84ed41041c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}