{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2989",
    "entityType": "User",
    "nonce": "0xad934e2c226b050e5ab57ed21fa514c630a0ece1ca10c3209c9fc6aa51f7b94f",
    "signature": "0x207d89de50f8261cfa1bc8ee71833139614d111f97bb25411a686a2282c22dbe7768a2672ee096451687d0dd74c51d69441767814188dea846c3871a0860d26c1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}