{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x851bc88bffcd92d08ea65dc9e9e39dc8e1c6929f27a59d5aee1eb9f8325ad593",
    "signature": "0xfdf6f5444d3a6909b4b622a60dd106172ee2f61a0ed77b754dea079f0ad554922bfae16b06fc7d1b524dba9c015975607ba59f3890e17df8418acce0c1d74af81b",
    "signer": "0xFc89F8b87577eB13785ce3cA0b136A04ACf8E0b7",
    "userId": "132103506"
  }
}