{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111840",
    "entityType": "User",
    "nonce": "0x82750a2c578406c29a4d6971ff5beece257bead222c7a85f218f260ffa7fd379",
    "signature": "0x7ee9bbd4779b6594488749450d03f9847ccecaafed21ed356da62b4e7e64cc7f1e823d6a76ba50d9c6706c2fbf6b7c4378981d769f07c23e029ca2f5073785a91c",
    "signer": "0x66310c3C430B9B1A2eb38D9c85159554D3C9D4C7",
    "userId": "823577399"
  }
}