{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16007",
    "entityType": "User",
    "nonce": "0x35a4cb4533527217798c53ad8d39671c2c27f5316fabd8d06fdb36247ebd4e8d",
    "signature": "0x645f7b3502d811e6425965d50750b233029d85b128bfaa40b929b68dffb9c02a3135d20949f12a8a7f8fe0e2c9181f04562eb9c7bf54a739f25b5f050e51d2b81c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}