{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x0620b401b1a923e4fc7fb590bebfdfc9d06e2e4cac96fe94ebef21a20f5d48aa",
    "signature": "0xbba61e9629862068b99de745d4bfda348666f47cb255ebee4132958905dd7a1c03bf0c718df158df7c84896226c7adefefef2435baea9b90beb48758e8a183581b",
    "signer": "0x85c38463b4Fb936eC315485c2360b60B2012Cbe1",
    "userId": "581465865"
  }
}