{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e4c173c98b892366dca12a90d41b362ccd554f918c0366cbe90084378f9725a",
    "signature": "0x4aed430f4866e63a7f3a9459fa1b242ed4619ec718d0293c9d42c9ffb908ffec32da4f4cd971a0533f9b702df8f2125ab1c6b4304d2cb7cf966619ed32b164171b",
    "signer": "0x993948A04d74C801C41F882e0Bd7D73d28fB5D79",
    "userId": "608405710"
  }
}