{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708313645",
    "entityType": "User",
    "nonce": "0x0494568fa046e82ac12c3f3f7c4c1878ff1e9f9003942cbed9a8bf11f8942cfb",
    "signature": "0xa387b84f2bbdf339c26b8cb04d3bec187621021231fb021acc1cafeec9c42c29737e3a78fab2b70d41f202ac656b02a328dffc2d8c66ac4b7927b02f527f5c501b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}