{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341554118",
    "entityType": "User",
    "nonce": "0xac8da9db792c1d1b1c88527eee14471e88e7bc8b6d6fb9f6eea63b95e3485e76",
    "signature": "0x2616dfe3ddd91d7c15ed22e63e92e285c77e478f75caf859c6258b7761d9eb3b63d2d3c91702814d3b7d36f476a4f7ad9b99907178de805623b0f31722178e6a1b",
    "signer": "0x4086Dda2D91F77cd46De0859a4de37F888508faA",
    "userId": "568518925"
  }
}