{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda7e7176dea83b0df063e18bcea05c9698844dde1db6ca41d0a5f1952dbdf709",
    "signature": "0x9420e5aa5cdf4b1241ec00524554cdbb27f6f4b8b1ba7b3292adc72d24cc467a02e2d5ec4a3f20ed2a988c7cac4a97ba74b5f2f5f9d08b4e06efc3509ff710a01b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}