{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910859044",
    "entityType": "User",
    "nonce": "0xb0b1ce5a35d4fe52e8245d69d51c05130d82c6276ce90063ac9406d2c99447b4",
    "signature": "0xac8514d8d78a5cb0b52c7e7c8e0442a617e4caea6b5072d000f6de880e31b7067d5720d9e1164baf441a50b214693d35c8e9ffb420f60bfee5f2eba0273d99221b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}